(English Medium) ICSE Class 9 - CISCE Question Bank Solutions for Physics

What does a force do in the following case?
You twist a piece of rubber.

What does a force do in the following case?
You apply brakes to a running car.

What does a force do in the following case?
You catch a kicked ball.

You can change the direction in which an object is moving by___________.

Name and state the action and reaction in the following case:
A book lying on a table.

Name and state the action and reaction in the following case:
A person walking on the ground.

Name and state the action and reaction in the following case:
Hammering a nail.

Why does a ball moving on a table top eventually stops?

Two equal and opposite forces acting at the same point on a stationary body. Will the body move? Give reason to explain your answer.

State the law of gravitation. Why is it called universal?

What is the difference between gravity and gravitation?

Gravity is another kind of ________. It exerts all through the ________. The Sun's gravity keeps the ___________ in their orbits. Gravity can only be felt with very large ________.

Explain why:
The atmosphere does not escape.

Explain the difference between g and G.

Is there a gravitational attraction between you and the book? Explain.

Does the force of the earth's gravitation affect the motion of the moon? Explain your answer with reasons.

State Newton's law of gravitation. What is the difference between:
Gravity and gravitation

State Newton's law of gravitation. What is the difference between:
g and G?

An apple falls towards the earth due to its gravitational force. The apple also attracts the earth with the same force. Why do we not see the earth rising towards the apple? Explain.

The distance-time values for an object moving along straight line are given below: