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

State two factors which determine the momentum of a body.

Define Newton’s second law of motion.

Prove mathematically F = ma

Multiple Choice Question. Select the correct option.

The impulse of a body is equal to:

Multiple Choice Question. Select the correct option.

A force acts on a body of mass 3 kg such that its velocity changes from 4 ms⁻¹ to 10 ms⁻¹. The change in momentum of the body is

Multiple Choice Question. Select the correct option.

Which of the following are vector quantities?

ame the law of motion which gives the definition of force.

Name the physical entity used for quantifying the motion of a body.

What causes motion in a body?

What do you mean by linear momentum of a body?

Which of the following has the largest inertia?

Why is it advantageous to turn before taking a long jump?

Name the physical quantity which equals the rate of change of linear momentum.

State Newton's second law of motion. Is Newton's first law of motion contained in Newton's second law of motion?

What do you mean by an impulsive force?

State Newton's second law of motion.
A body of mass 400 g is resting on a frictionless table. Find the acceleration of the body when acted upon by a force of 0.02 N.

What do you mean by linear momentum of a body? A force causes an acceleration of 10 ms^-2 in a body of mass 1 kg. What acceleration will be caused by the same force in a body of mass 4 kg?

Use Newton's second law to explain the following:
We always prefer to land on sand instead of hard floor while taking a high jump.

Use Newton's second law to explain the following:
While catching a fast moving ball, we always pull our hands backwards.

A stone is dropped from a cliff 98 m high.
How long will it take to fall to the foot of the cliff?