CBSE Sample Paper 2012

CBSE SAMPLE PAPER 2012

CBSE Sample  paper for English 2012

 

CBSE Sample question paper for Home Science ( Class iX)  2012

 

CBSE Sample Paper for  science Class 9

 

 

 

   PHYSICS                          ASSIGNMENT

 

 

1.   When the passenger moving in a bus, the road side trees appear to be moving (a) Back ward (b )Forward

 

2.   In uniform motion the object covers

 

(a)  equal distance(b) unequal distance

 

3.   Where objects cover unequal distances in equal interval of time then the motion is called (a) uniform motion

 

(b) non uniform motion

 

4.   An object travels 16m in 4sec and another 16 m in 2 sec. what is the average speed of the object (a) 5.33 ms-1 (b) 5. 34ms-1

5.   If we specify, its direction of motion along with its speed, the quantity that specifies with the aspects is called (a) velocity (b) motion

6.   The velocity of an object can be (a) non uniform or variable (b) uniform or variable

 

7.   A car accelerate uniformly from 18 km h-1to 36 km h-1in 5 sec. calculate the acceleration (a) 1ms-2 (b) 1 ms-3

8.   A train starting from rest attains a velocity of 72 km h-1in 5 minutes. Assuming that the acceleration is uniform. Find the distance traveled by the train for attaining this velocity (a) 2km (b) 5km

9.   A car goes from a town A to another town B with a speed of 40 km/h and returns back to the town A with a speed of 60 km/h. The average speed of the car during the complete journey is - (a) 48 km/h (b) 50 km/h (c) zero

10. The initial velocity of a body is u . It is under uniform acceleration. Its velocity v at any time is given by - (a)

v = u + at2              (b) v = u + ½ at2 (c) v = u + at (d) v = u.

 

11. The distance covered in time by a body having initial velocity u and having a uniform acceleration is given by s = ut + ½ at2. This result follows from -(a) Newtons first law (b) Newton’s second law (c) Newton’s third law

12. A ball is thrown vertically upwards. It rises to a height of 50 m and comes back to the thrower,(a) the total distance covered by the ball is zero. (b) the net displacement of the ball is zero.(c) the displacement is100

13. In 12 minutes a car whose speed is 35 km/h travels a distance of(a) 7 km (b) 3.5 km (c) 14 km (d) 28 km

 

14. When a graph of one quantity versus another results in a straight line, the quantities are -(a) both constant

 

(b) equal (c) directly proportional (d) inversely proportional

 

15. A body moving along a straight line at 20 m/s undergoes an acceleration of -4 m/s2. After two seconds its speed will be -(a) -8 m/s (b) 12 m/s (c) 16 m/s (d) 28 m/s.

16. A car increases its speed from 20 km/h to 30 km/h in 10 seconds. Its accelerations(a) 30 m/s2 (b) 3 m/s2 (c) 18 m/s2 (d) 0.83 m/s2

17. A body whose speed is constant(a) must be accelerated (b) might be accelerated (c) has a constant velocity (d) cannot be accelerated.

18. When the distance that an object travels is directly proportional to the length of time it is said to travel with(a) zero velocity (b) constant speed (c) constant acceleration (d) uniform velocity

19. a particle moves with uniform positive acceleration. Its velocity-time graph will be

 

(a) a straight line parallel to the time axi (b) a straight line inclined at an obtuse angle to the time axis

 

(c) a straight line inclined at an acute angle to the time axis         (d) none of these.



20. Q.15: A particle experiences constant acceleration for 20 seconds after starting from rest. If it travels a distance s1in the first 10 seconds and distance s2in the next 10 seconds then,(a) s2= s1 (b) s2= 2s1 (c)s2=

3s1 (d) s2= 4s1

 

21. In which of the following cases the object does not possess an acceleration or retardation when it moves in(a)  upward  direction  with  decreasing  speed  (b)  downward  direction  with  increasing  speed  (c)  with constant speed along circular path (d) with constant speed along horizontal path

22. A person travels distance πR along the circumference of a circle of radius R . Displacement of the person is(a) R (b) 2R (c) 2πR (d) zero

23. The velocity of an object is directly proportional to the time elapsed. The object has(a) uniform speed (b)

 

uniform velocity (c) uniform acceleration (d) variable acceleration

 

 

. A magnet is repeatedly moved closely over a mixture of iron powder and sulphur powder. Which of the following is not observed?



(a) Iron powder is attracted towards magnet                                  (b) sulphur powder is left behind

 

(c) black powder is left behind                                                        (d) iron powder and sulphur powder are separated

 

20. The colour of magnesium ribbon is

 

(a) grayish white                         (b) brown                       (c) black                         (d) grayish black

 

21. While heating ammonium chloride and sodium chloride mixture, keep your face away from vapours because: (a) chlorine vapours may cause irritation in eyes              (b) ammonia vapours may cause irritation in eyes

(c) sodium chloride vapours may cause irritation in eyes (d) ammonium chloride vapours may block nose

 

22. In which of the following you observed that the particles settle down on standing? (a) common salt solution                                                   (b) muddy water

(c) starch solution                                                              (d) egg albumin in water

 

23. To prepare a colloidal solution of starch , we should:

 

(a) add starch powder to boiling water and cool                            (b) add starch powder to cold water and boil

 

(c) heat starch, add it to cold water and then bring it to boil (d) add thin paste of starch to hot water with stirring

 

24. A mixture of iron fillings and sulphur is heated, the colour of the mixture will change:

 

(a) black to yellow         (b) yellow to black          (c) black to brown          (d) brown to yellow

 

25. The colour that indicates that dal is adulterer with methanol yellow is: (a) crimson       (b) pink             (c) red               (d) brown

26. To observe onion cells in an onion peel, we must prepare the slide by mounting on it: (a) crushed pulp of onion                        (b) dry scale leaf

(c) green leaf of onion                             (d) thin layer of fleshy leaf of onion

 

27. When we determine the boiling point of liquid, the thermometer

 

(a) should dip into liquid                                       (b) should be above the liquid and vertical

 

(c) should touch the bottom of container              (d) should be placed slanting in the liquid

 

28. A blue black colour precipitate with iodine solution indicates the presence of : (a) Glucose       (b) Protein         (c) Fat               (d) Starch

29. The aqueous solution of salt and sand can be separated by

 

(a) Filtration followed by evaporation                   (b) Filtration followed by crystallization

 

(c) Sublimation                                                     (d) Melting

 

30. The structure responsible for receiving impulse in a nerve cell is:

 

(a) Dendrite                   (b) Axon            (c) Cell body                  (d) Nucleus

 

SECTION- B

 

1. Which process is used in washing machine to squeeze (rinse) water from clothes?

 

2. Name the types of simple tissues.

 

3. What is the value of ‘g at the centre of earth?

 

4. Name the physical quantity corresponds to rate of change of momentum.

 

5. What do you mean by saturated solution?

 

6.Why does our palm feel cold when we put some acetone or petrol on it?

 

7. Give two reasons to support that water is a compound and not a mixture.

 

8. If the moon attracts the Earth, why does he earth not move towards the moon?

 

9. Explain why some of the leaves may get detached from a tree if we vigorously shake its branch?

 

10. What are the values of distance and displacement in covering 10 m from P to Q and coming back?

 

 


CBSE Sample Paper for Physics Class 9

CBSE Sample Paper for Chemisry, Class iX

 

Sample Paper – 2012
Class – IX
 Subject –
Physics and Chemistry

 

Section A (1 Mark each)

Q1.     An object has moved through a distance. Can it have zero displacement? If yes then give one example.

Q2.     Write one characteristic of particles of matter.

Section B (2 Marks each)

Q1.     Define Tyndall effect. Which type of solutions show Tyndall effect?

Q2.     How does the force of gravitation between two objects change when the distance between them is reduced to half

Section C (3 Marks each)

Q1.     Give reasons: (a) A wooden table is considered a solid. (b) We should wear cotton clothes in summer (c) The spaces between the constituent particles are maximum in gases.

Q2.     Example the following with the help of examples: (a) Saturated solution (b) colloids.

Q3.     Derive the relation between force and acceleration. Define SI unit of force.

Q4.     A ball is thrown vertically upwards with a velocity ‘u’. Calculate the velocity with which it falls to the earth again.

Q5.     State the universal law of gravitation and derive the expression for gravitational force between two bodies.   

Q6.     The weight of an object on the surface of moon is 3.34 N and its mass on its surface is 1 kg. Calculate its weight and mass on the surface of earth. (g on earth= 10m/s2)

Q7.     A stone of 1 kg is thrown with a velocity of 20m/s across the frozen surface of a lake and comes to rest after travelling a distance of 50m. What is the force of friction between the stone and the ice?                                 

Section D (5 Marks each)

Q1.     How are solutions, colloidal solutions and suspensions different from each other?

Q2.     Explain fusion, vaporization, condensation, solidification and sublimation.

Q3.     (a) Define momentum of a body. Prove with the help of third law of motion that the total momentum of two bodies is conserved during collision provided no external force acts.  (b) A car of mass 1500 kg travelling at 25m/s collides with another car of mass 1000 kg travelling at 15m/s in the same direction. After collision, the velocity of first car becomes 20m/s. calculate the velocity of other car after collision.

Q4.     The velocity time graph of a body is given as follows: (i) State the kind of motion represented by OA, AB.  (ii) What is the velocity of the body after 10s and after 40s?  (iii) Calculate the retardation of the body.  (iv) Calculate the distance covered by the body between 10th and 30th second.                                                 

 

MCQ

Q1.     The color of sodium chloride and ammonium chloride respectively (a) yellow and white     (b) white and yellow   (c) both are white   (d) grey and yellow.

Q2.     When a true solution is filtered, the residue left on the filter paper is (a) very less in amount   (b) pale yellow in color   (c) large in amount    (d) no residue is left on filter paper.

Q3.     The reaction of iron and sulphur to form iron sulphide takes place (a) at high temperature   (b) in the presence of catalyst   (c) at moderate temperature (d) in the presence of an acid.

Q4.     For finding boiling point of water, it is advised to put the bulb of the thermometer in the steam rather in water. This is to : (a) reduce the error due to atmospheric pressure  (b)  make sure that boiling point obtained is accurate even when water sample contains non volatile impurities dissolved.  (c) Reduce the error due to expansions of glass because of heat. (d) Obtain the boiling point accurately even in such a shorter time.

Q5.     The equipment required to prepare iron sulphide by heating a mixture of iron filings and sulphur powder is : (a) petri-dish  (b) watch glass  (c) china dish   (d) beaker.

Q6.     The sequence of steps taken for separating a mixture of ammonium chloride sand and common salt is: sublimation, adding water, filtration, and evaporation.   (b) evaporation, adding water, filtration, sublimation   (c) Filtration , evaporation, sublimation, adding water   (d) Evaporation, sublimation, adding water, filtration.

Q7.     The process of melting is also known as: (a) Fusion    (b) ice point    (c) Freezing point    (d) Latent heat of fusion.

Q8.     The heating of copper sulphate is: (a) Chemical change   (b) Physical change   (c) Both chemical and physical change    (d) None of these.

Q9.     Alcohol from a mixture of water and alcohol can be separated by:  (a) filtration   (b) fractional distillation    (c) chromatography    (d) centrifugation.

Q10.   The conditions for the liquefaction of gases are: (a) High temperature, high pressure    (b) low temperature and low pressure    (c) Low temperature and high pressure    (d) High temperature and low pressure.

Q11.   When magnet is rolled in the mixture of iron and sulphur then: (a) iron particles do not cling to the magnet    (b) iron particles cling to the magnet     (c) iron and sulphur both cling to magnet     (d) none of these.

Q12.   A body is rotating along a circular path with constant speed, its  (a) acceleration is zero    (b) velocity is uniform   (c) acceleration is fixed   (d) none of these.

 

Q13.   (a) A 8000 kg engine pulls a train of 5 wagons, each of 2000 kg along a horizontal track. The engine exerts a force of 400 N. If the track suffers a friction force of 5000 N, then calculate: (i) the net accelerating force.   (ii) The acceleration of the train.  (iii) The force of wagon 1 on wagon 2.

 

 

CBSE Sample Paper for Science, Class 9

 

Sample Paper – 2012
Class – IX
Subject –
Science

Maximum marks: 100                                                                       Total time: 3Hr

_________________________________________________________________________________________________________

General Instructions:


(i)               

The question paper comprises of three sections, A, B and C you are to attempt three sections.


(ii)             

All questions are compulsory.


(iii)           

There is no overall choice. However, internal choice has been provided in all the two questions for the numerical. Only one option in such question is to be attempted.


(iv)           

All questions of section A, B and C are to be attempted separately.


(v)             

Question numbers 1 to 19 in section A, are to be answered in one word or one sentence


(vi)           

 Question numbers 20 to 25 and each part of 26 are two mark questions, to be answered in about 30 words.


(vii)         

Question numbers 27 to 34 are three mark questions, to be answered in about 50 words.


(viii)       

Question numbers 35 to 38 in section C are long question. These are to be answered in about 70 words.                                     

                                                                        SECTION−A

 

 

1. If a body starts from rest, what can be said about the acceleration of the the body?              (01)

 (a) Positive accelerated (b) negatively accelerated (c) uniform accelerated (d) none of these   

2. What does the slope position time graph give?                                                                                   (01)

 (a) Speed (b) acceleration (c) uniform speed   (d) both[a] and [c] depending upon the time of graph

3. When a body moves uniformly along the circle, then                                                                        (01)

(a)  Its velocity changes but speed remains the same

(b)  Its speed changes but velocity remains the same

(c)  Both speed and velocity changes

(d)  Both speed and velocity remains same                                                                                                                       

4. Newton’s first law of motion is also called                                                                                             (01)

(a)Law of inertia (b) law of momentum (c) law of action and reaction (d) none of these

5. If the friction acting on the body is more the body will move:                                                         (01)

(a) More speedily (b) less speedily (c) same speed (d) none of these

6. The SI unit of weight is:                                                                                                                                  (01)

(a)Newton (b) Newton-m (c) Newton /sec (d) Newton-m/sec

7. What is the SI unit of momentum?                                                                                                              (01)

(a)Kg-m-sec     (b) m –sec/kg (c) kg-m/sec (d) kg/m-sec

8.  What is the SI unit of force?                                                                                                                          (01)

  (a)Kg-m/sec²   (b) kg-m /sec (c) kg-m² /sec² (d) kg-m² sec²

9. The people in the bus are pushed backwards when the bus starts suddenly due to:                 (01)

(a)Inertia due to rest  (b) Inertia due to motion  (c) Inertia due to direction (d) Inertia

10. If the initial velocity is zero then the force acting is:                                                                           (01)

  (a)Retarding (b) Acceleration     (c) both (d) none of these 

11. Unit of relative density is:                                                                                                                            (01)

  (a) kg/m³ (b) unit less   (c) depends (d) on the density of substance:

12. The weight of an object is:                                                                                                                           (01)

(a) Greater on earth and lesser on moon (b) lesser on earth and greater on moon

(c) Equal on both earth and moon (d) none of these                                                                   

13. The relation between the weight of an objection the moon (Wм) and on the earth (Wе)       (01)

 (a)Wм =1⁄6      (b) Wм=   We         (c) We = 1/6Wм     (d) Wм =6 Wе

14. If the distance between object increases, remaining same then the gravitational force between the object will:                                                                                                                                                          (01)

(a)Increase      (b) decrease    (c) remain same     (d) none of these

15. Name the following:                                                                                                                               ½*4= (2)

(i) Tissues that connects muscles to bones in human ----------------.

(ii)  Tissues that transport food in plants --------------------.

(iii) Tissues present in the brain-------------------------.

(iv) System of giving scientific names to plants and animals-------------------.

16. Give two examples of following:                                                                                                       ½*6= (03)

(i)Gymnosperms ----------------       ---------------------------

(ii) Angiosperms ------------------     ---------------------------

(iii) Bryophyta     --------------------      ---------------------------

17. Which of the following are matter:                                                                                                  ¼ *4= (01)

(i) Thought     (ii) cold      (iii) cold drink     (iv) air          

18. Convert the following to Celsius scale:                                                                                            1*3= (03)                                                                                                    

(i) 300K             (ii) 573K          (iii) 273K

19. What is the physical state of water at:                                                                                     ½+1+½= (02)

(i) 25˚C              (ii) 0˚C               (iii) 100˚C                                                               

                                                                        SECTION–B

20. State Archimedes’s principle?                                                                                                                       (02)                                                                                                    

21. Define density and relative density.                                                                                                            (02)

                                                                OR

A girl of mass 40 kg jumps with a horizontal velocity of 5 m/s on to a stationary cart with frictionless wheels. The mass of cart is 3 kg, what is her velocity as the cart start moving?      

22. If the mass of one object is doubled and mass of other remains the same and if distance between                                                                                                                                                                                                                                                                                                                                  them is halved then how does the gravitation force change?                                                                     (02)

23. A 0.24g sample of compound of oxygen and boron was found by analysis to contain 0.096g of boron and 0.144g of oxygen. Calculate the percentage composition of the compound by weight. (02)

24. When 3.0 g of carbon is burnt in 8.0 g of oxygen, 11.0 g of carbon dioxide is produced. What mass of carbon dioxide will be found when 3.0 g of carbon is burnt in 50.0 g of oxygen?                (02)

25. What type of clothes should we wear in summer?                                                                                 (02)

26. Answer the following questions:                                                                                                     2*11= (22)

(i) What are the major decisions in the kingdom of plants?

(ii) Name the region in which Parenchyma tissue is present.

(iii) How many types of elements together make up the xylem?

(iv) How does amoeba obtain its food?

(v) Which organelle is known as the power house of the cell?

(vi) Why are Lysosomes  known as suicide bags?

(vii) Write two differences between plant cell and animal cell.

(viii) Write two characters of kingdom fungi.

(ix) Write two application of crystallization.

(x) What do you mean by chromatography?

(xi) Write the help of well labeled diagram show evaporation.

 

27. What is the magnitude of gravitational force exerted by a 15 kg mass on a25 kg mass separated                                                                       by a distance of 25 Cm? What is the acceleration produced on each mass?                                           (03)

28. A stone is dropped from a height of 100 meters on earth. At the same time, another stone is thrown vertically upwards from aground with a velocity of 50 m/s. At what height from the ground will the stone meat?                                                                                                                                                 (03)

29. What is acceleration due to gravity and calculate its value on earth?                                               (03)

30. Give the name of elements present in the following compounds:                                                      (03)

(i) Quick lime         (ii) potassium sulphate        (iii) baking powder

31. What is the law of conservation of mass?                                                                                                  (03)

32. What is the law of constant proportion?                                                                                                    (03)

33. Write three characters of kingdom Monera.                                                                                             (03)

33. Write three characters of kingdom Amphibia.                                                                                          (03)

                                                                             SECTION–C

34. Calculate the molar mass of following substances:                                                                                 (04)


(i)               

C₂H₂.


(ii)             

HCl

36. In the tabular form show the classification of organisms.                                                                    (04)

 37. Draw a well labeled diagram of labeo whita.                                                                                           (04)            

 38. The Olympic high jump record is 2.45 meters held by Cuba when acceleration due to gravity on                                                earth was –1m/s². Calculate the height to which the jumper would have jumped?                            (05)

                                                                                   OR 

(a)  

What happens to a person travelling in a bus when the bus takes a sharp turn? Give reason.

(b) 

A cricketer moves his hand backwards on catching a fast moving ball. Why?

(c)  

A bullet of mass 0.02 kg is fired by a gun of mass 100 kg. If the speed of bullet is 80 m/s. calculate the recoil speed of the gun?                                                                                                                                                                                                                                                                                              

 

 

                                                                                     

CBSE Sample Paper for Science, class IX

 

Sample Paper – 2012
Class – IX
Subject –
Science

Maximum marks: 100                                                                       Total time: 3Hr

_________________________________________________________________________________________________________

General Instructions:


(i)               

The question paper comprises of three sections, A, B and C you are to attempt three sections.


(ii)             

All questions are compulsory.


(iii)           

There is no overall choice. However, internal choice has been provided in all the two questions for the numerical. Only one option in such question is to be attempted.


(iv)           

All questions of section A, B and C are to be attempted separately.


(v)             

Question numbers 1 to 19 in section A, are to be answered in one word or one sentence


(vi)           

 Question numbers 20 to 25 and each part of 26 are two mark questions, to be answered in about 30 words.


(vii)         

Question numbers 27 to 34 are three mark questions, to be answered in about 50 words.


(viii)       

Question numbers 35 to 38 in section C are long question. These are to be answered in about 70 words.                                     

                                                                        SECTION−A

 

 

1. If a body starts from rest, what can be said about the acceleration of the the body?              (01)

 (a) Positive accelerated (b) negatively accelerated (c) uniform accelerated (d) none of these   

2. What does the slope position time graph give?                                                                                   (01)

 (a) Speed (b) acceleration (c) uniform speed   (d) both[a] and [c] depending upon the time of graph

3. When a body moves uniformly along the circle, then                                                                        (01)

(a)  Its velocity changes but speed remains the same

(b)  Its speed changes but velocity remains the same

(c)  Both speed and velocity changes

(d)  Both speed and velocity remains same                                                                                                                       

4. Newton’s first law of motion is also called                                                                                             (01)

(a)Law of inertia (b) law of momentum (c) law of action and reaction (d) none of these

5. If the friction acting on the body is more the body will move:                                                         (01)

(a) More speedily (b) less speedily (c) same speed (d) none of these

6. The SI unit of weight is:                                                                                                                                  (01)

(a)Newton (b) Newton-m (c) Newton /sec (d) Newton-m/sec

7. What is the SI unit of momentum?                                                                                                              (01)

(a)Kg-m-sec     (b) m –sec/kg (c) kg-m/sec (d) kg/m-sec

8.  What is the SI unit of force?                                                                                                                          (01)

  (a)Kg-m/sec²   (b) kg-m /sec (c) kg-m² /sec² (d) kg-m² sec²

9. The people in the bus are pushed backwards when the bus starts suddenly due to:                 (01)

(a)Inertia due to rest  (b) Inertia due to motion  (c) Inertia due to direction (d) Inertia

10. If the initial velocity is zero then the force acting is:                                                                           (01)

  (a)Retarding (b) Acceleration     (c) both (d) none of these 

11. Unit of relative density is:                                                                                                                            (01)

  (a) kg/m³ (b) unit less   (c) depends (d) on the density of substance:

12. The weight of an object is:                                                                                                                           (01)

(a) Greater on earth and lesser on moon (b) lesser on earth and greater on moon

(c) Equal on both earth and moon (d) none of these                                                                   

13. The relation between the weight of an objection the moon (Wм) and on the earth (Wе)       (01)

 (a)Wм =1⁄6      (b) Wм=   We         (c) We = 1/6Wм     (d) Wм =6 Wе

14. If the distance between object increases, remaining same then the gravitational force between the object will:                                                                                                                                                          (01)

(a)Increase      (b) decrease    (c) remain same     (d) none of these

15. Name the following:                                                                                                                               ½*4= (2)

(i) Tissues that connects muscles to bones in human ----------------.

(ii)  Tissues that transport food in plants --------------------.

(iii) Tissues present in the brain-------------------------.

(iv) System of giving scientific names to plants and animals-------------------.

16. Give two examples of following:                                                                                                       ½*6= (03)

(i)Gymnosperms ----------------       ---------------------------

(ii) Angiosperms ------------------     ---------------------------

(iii) Bryophyta     --------------------      ---------------------------

17. Which of the following are matter:                                                                                                  ¼ *4= (01)

(i) Thought     (ii) cold      (iii) cold drink     (iv) air          

18. Convert the following to Celsius scale:                                                                                            1*3= (03)                                                                                                    

(i) 300K             (ii) 573K          (iii) 273K

19. What is the physical state of water at:                                                                                     ½+1+½= (02)

(i) 25˚C              (ii) 0˚C               (iii) 100˚C                                                               

                                                                        SECTION–B

20. State Archimedes’s principle?                                                                                                                       (02)                                                                                                    

21. Define density and relative density.                                                                                                            (02)

                                                                OR

A girl of mass 40 kg jumps with a horizontal velocity of 5 m/s on to a stationary cart with frictionless wheels. The mass of cart is 3 kg, what is her velocity as the cart start moving?      

22. If the mass of one object is doubled and mass of other remains the same and if distance between                                                                                                                                                                                                                                                                                                                                  them is halved then how does the gravitation force change?                                                                     (02)

23. A 0.24g sample of compound of oxygen and boron was found by analysis to contain 0.096g of boron and 0.144g of oxygen. Calculate the percentage composition of the compound by weight. (02)

24. When 3.0 g of carbon is burnt in 8.0 g of oxygen, 11.0 g of carbon dioxide is produced. What mass of carbon dioxide will be found when 3.0 g of carbon is burnt in 50.0 g of oxygen?                (02)

25. What type of clothes should we wear in summer?                                                                                 (02)

26. Answer the following questions:                                                                                                     2*11= (22)

(i) What are the major decisions in the kingdom of plants?

(ii) Name the region in which Parenchyma tissue is present.

(iii) How many types of elements together make up the xylem?

(iv) How does amoeba obtain its food?

(v) Which organelle is known as the power house of the cell?

(vi) Why are Lysosomes  known as suicide bags?

(vii) Write two differences between plant cell and animal cell.

(viii) Write two characters of kingdom fungi.

(ix) Write two application of crystallization.

(x) What do you mean by chromatography?

(xi) Write the help of well labeled diagram show evaporation.

 

27. What is the magnitude of gravitational force exerted by a 15 kg mass on a25 kg mass separated                                                                       by a distance of 25 Cm? What is the acceleration produced on each mass?                                           (03)

28. A stone is dropped from a height of 100 meters on earth. At the same time, another stone is thrown vertically upwards from aground with a velocity of 50 m/s. At what height from the ground will the stone meat?                                                                                                                                                 (03)

29. What is acceleration due to gravity and calculate its value on earth?                                               (03)

30. Give the name of elements present in the following compounds:                                                      (03)

(i) Quick lime         (ii) potassium sulphate        (iii) baking powder

31. What is the law of conservation of mass?                                                                                                  (03)

32. What is the law of constant proportion?                                                                                                    (03)

33. Write three characters of kingdom Monera.                                                                                             (03)

33. Write three characters of kingdom Amphibia.                                                                                          (03)

                                                                             SECTION–C

34. Calculate the molar mass of following substances:                                                                                 (04)


(i)               

C₂H₂.


(ii)             

HCl

36. In the tabular form show the classification of organisms.                                                                    (04)

 37. Draw a well labeled diagram of labeo whita.                                                                                           (04)            

 38. The Olympic high jump record is 2.45 meters held by Cuba when acceleration due to gravity on                                                earth was –1m/s². Calculate the height to which the jumper would have jumped?                            (05)

                                                                                   OR 

(a)  

What happens to a person travelling in a bus when the bus takes a sharp turn? Give reason.

(b) 

A cricketer moves his hand backwards on catching a fast moving ball. Why?

(c)  

A bullet of mass 0.02 kg is fired by a gun of mass 100 kg. If the speed of bullet is 80 m/s. calculate the recoil speed of the gun?                                                                                                                                                                                                                                                                                                                                                                                                        

 

 

 

 

CBSE Sample Paper for Science, Class 9

 

Sample Paper – 2012
Class – IX
Subject –
Science

Maximum marks: 100                                                                       Total time: 3Hr

_________________________________________________________________________________________________________

General Instructions:


(i)               

The question paper comprises of three sections, A, B and C you are to attempt three sections.


(ii)             

All questions are compulsory.


(iii)           

There is no overall choice. However, internal choice has been provided in all the two questions for the numerical. Only one option in such question is to be attempted.


(iv)           

All questions of section A, B and C are to be attempted separately.


(v)             

Question numbers 1 to 19 in section A, are to be answered in one word or one sentence


(vi)           

 Question numbers 20 to 25 and each part of 26 are two mark questions, to be answered in about 30 words.


(vii)         

Question numbers 27 to 34 are three mark questions, to be answered in about 50 words.


(viii)       

Question numbers 35 to 38 in section C are long question. These are to be answered in about 70 words.                                     

                                                                        SECTION−A

 

 

1. If a body starts from rest, what can be said about the acceleration of the the body?              (01)

 (a) Positive accelerated (b) negatively accelerated (c) uniform accelerated (d) none of these   

2. What does the slope position time graph give?                                                                                   (01)

 (a) Speed (b) acceleration (c) uniform speed   (d) both[a] and [c] depending upon the time of graph

3. When a body moves uniformly along the circle, then                                                                        (01)

(a)  Its velocity changes but speed remains the same

(b)  Its speed changes but velocity remains the same

(c)  Both speed and velocity changes

(d)  Both speed and velocity remains same                                                                                                                       

4. Newton’s first law of motion is also called                                                                                             (01)

(a)Law of inertia (b) law of momentum (c) law of action and reaction (d) none of these

5. If the friction acting on the body is more the body will move:                                                         (01)

(a) More speedily (b) less speedily (c) same speed (d) none of these

6. The SI unit of weight is:                                                                                                                                  (01)

(a)Newton (b) Newton-m (c) Newton /sec (d) Newton-m/sec

7. What is the SI unit of momentum?                                                                                                              (01)

(a)Kg-m-sec     (b) m –sec/kg (c) kg-m/sec (d) kg/m-sec

8.  What is the SI unit of force?                                                                                                                          (01)

  (a)Kg-m/sec²   (b) kg-m /sec (c) kg-m² /sec² (d) kg-m² sec²

9. The people in the bus are pushed backwards when the bus starts suddenly due to:                 (01)

(a)Inertia due to rest  (b) Inertia due to motion  (c) Inertia due to direction (d) Inertia

10. If the initial velocity is zero then the force acting is:                                                                           (01)

  (a)Retarding (b) Acceleration     (c) both (d) none of these 

11. Unit of relative density is:                                                                                                                            (01)

  (a) kg/m³ (b) unit less   (c) depends (d) on the density of substance:

12. The weight of an object is:                                                                                                                           (01)

(a) Greater on earth and lesser on moon (b) lesser on earth and greater on moon

(c) Equal on both earth and moon (d) none of these                                                                   

13. The relation between the weight of an objection the moon (Wм) and on the earth (Wе)       (01)

 (a)Wм =1⁄6      (b) Wм=   We         (c) We = 1/6Wм     (d) Wм =6 Wе

14. If the distance between object increases, remaining same then the gravitational force between the object will:                                                                                                                                                          (01)

(a)Increase      (b) decrease    (c) remain same     (d) none of these

15. Name the following:                                                                                                                               ½*4= (2)

(i) Tissues that connects muscles to bones in human ----------------.

(ii)  Tissues that transport food in plants --------------------.

(iii) Tissues present in the brain-------------------------.

(iv) System of giving scientific names to plants and animals-------------------.

16. Give two examples of following:                                                                                                       ½*6= (03)

(i)Gymnosperms ----------------       ---------------------------

(ii) Angiosperms ------------------     ---------------------------

(iii) Bryophyta     --------------------      ---------------------------

17. Which of the following are matter:                                                                                                  ¼ *4= (01)

(i) Thought     (ii) cold      (iii) cold drink     (iv) air          

18. Convert the following to Celsius scale:                                                                                            1*3= (03)                                                                                                    

(i) 300K             (ii) 573K          (iii) 273K

19. What is the physical state of water at:                                                                                     ½+1+½= (02)

(i) 25˚C              (ii) 0˚C               (iii) 100˚C                                                               

                                                                        SECTION–B

20. State Archimedes’s principle?                                                                                                                       (02)                                                                                                    

21. Define density and relative density.                                                                                                            (02)

                                                                OR

A girl of mass 40 kg jumps with a horizontal velocity of 5 m/s on to a stationary cart with frictionless wheels. The mass of cart is 3 kg, what is her velocity as the cart start moving?      

22. If the mass of one object is doubled and mass of other remains the same and if distance between                                                                                                                                                                                                                                                                                                                                  them is halved then how does the gravitation force change?                                                                     (02)

23. A 0.24g sample of compound of oxygen and boron was found by analysis to contain 0.096g of boron and 0.144g of oxygen. Calculate the percentage composition of the compound by weight. (02)

24. When 3.0 g of carbon is burnt in 8.0 g of oxygen, 11.0 g of carbon dioxide is produced. What mass of carbon dioxide will be found when 3.0 g of carbon is burnt in 50.0 g of oxygen?                (02)

25. What type of clothes should we wear in summer?                                                                                 (02)

26. Answer the following questions:                                                                                                     2*11= (22)

(i) What are the major decisions in the kingdom of plants?

(ii) Name the region in which Parenchyma tissue is present.

(iii) How many types of elements together make up the xylem?

(iv) How does amoeba obtain its food?

(v) Which organelle is known as the power house of the cell?

(vi) Why are Lysosomes  known as suicide bags?

(vii) Write two differences between plant cell and animal cell.

(viii) Write two characters of kingdom fungi.

(ix) Write two application of crystallization.

(x) What do you mean by chromatography?

(xi) Write the help of well labeled diagram show evaporation.

 

27. What is the magnitude of gravitational force exerted by a 15 kg mass on a25 kg mass separated                                                                       by a distance of 25 Cm? What is the acceleration produced on each mass?                                           (03)

28. A stone is dropped from a height of 100 meters on earth. At the same time, another stone is thrown vertically upwards from aground with a velocity of 50 m/s. At what height from the ground will the stone meat?                                                                                                                                                 (03)

29. What is acceleration due to gravity and calculate its value on earth?                                               (03)

30. Give the name of elements present in the following compounds:                                                      (03)

(i) Quick lime         (ii) potassium sulphate        (iii) baking powder

31. What is the law of conservation of mass?                                                                                                  (03)

32. What is the law of constant proportion?                                                                                                    (03)

33. Write three characters of kingdom Monera.                                                                                             (03)

33. Write three characters of kingdom Amphibia.                                                                                          (03)

                                                                             SECTION–C

34. Calculate the molar mass of following substances:                                                                                 (04)


(i)               

C₂H₂.


(ii)             

HCl

36. In the tabular form show the classification of organisms.                                                                    (04)

 37. Draw a well labeled diagram of labeo whita.                                                                                           (04)            

 38. The Olympic high jump record is 2.45 meters held by Cuba when acceleration due to gravity on                                                earth was –1m/s². Calculate the height to which the jumper would have jumped?                            (05)

                                                                                   OR 

(a)  

What happens to a person travelling in a bus when the bus takes a sharp turn? Give reason.

(b) 

A cricketer moves his hand backwards on catching a fast moving ball. Why?

(c)  

A bullet of mass 0.02 kg is fired by a gun of mass 100 kg. If the speed of bullet is 80 m/s. calculate the recoil speed of the gun?                                                                                                                                                                                                                                                                                                       

 

 

 

 

 

 

                                                                                                                    

 

 

 

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