CBSE Class 9 Physics Question Paper Set E

CBSE Class 9 Physics Question Paper SA1 2011 (5). Students can download the last year question papers using the link below. Free download of examination question papers with solutions. Last 10 year question papers should be practised to get better marks in examinations. 

1. An unbalanced force is acting on an object. List the possible effects that will be caused in the motion of object.

2. Write the S.I. unit of G. Why is gravitational constant (G) known as universal constant ?

3. An object is moving with uniform speed in a circle of radius r. Calculate the distance and displacement :

(a) When it complete half the circle

(b) When it completes full circle

(c) What type of motion does the object possess ? (Justify your answer)

4. What happens when we accidentally step on a peel of banana ? Explain with reference to Newton’s law of motion.

5. Give three points of differences between mass and weight.

6. (a) State the unit of force and define it.

(b) A stone is dropped from the edge of a 4.9 m high roof. Find out the following :

(i) Time taken to fall 4.9m ?

(ii) Velocity just before it reaches the ground.

(iii) What is its acceleration after 1 s and 2 s from start ?

7. (a) State Universal law of Gravitation.

(b) If the moon attracts the earth, why does the earth not move towards the moon ?

8. (a) Derive an expression to prove the law of conservation of momentum.

(b) Why does a karate expert suddenly reduce the speed of his hand while striking a slab of ice ?

Explain with reference to Newton’s law of motion.

OR

(a) State Newton’s first law of motion.

(b) A scooter is moving with an initial velocity of 90km/hr and it takes 10s to stop it, after the brakes are applied. Calculate the force exerted by the brakes on the scooter if its mass along with the rider is 200 kg. What would be the force if the mass is halved ?

Please click the link below to download pdf file of CBSE Class 9 Physics Question Paper SA1 2011 (5).