(English Medium) ICSE Class 10 - CISCE Question Bank Solutions

Give one example in the given cases:-

A force changes the shape of a body

Give one example in the given cases:-

A force changes the shape of a body

Define the term linear momentum. State its S.I unit.

How is force related to the momentum of a body?

Complete the following sentence:

Mass X change in velocity = ............x time interval.

Complete the following sentence:

The mass of a body remains constant till the velocity of the body is ..........

Prove the force = mass x acceleration. State the condition when it holds.

Define Newton (the S.I unit of force)

Define 1 kgf how is it related to Newton?

Explain what is understood by the following statement 1 kilogram-force (kgf) - 9.8 newton

How can you feel a force of 1 N?

Complete the following:

Force = mass x ............

Complete the following

1 N = ..........dyne.

Complete the following:

1 N = ............kgf (approx)

Complete the following

Newton is the unit of .................

Which of the following is not the force at a distance:

(a) electrostatic force

(b) gravitational force

(c) frictional force.

(d) magnetic force.

Newton's second law of motion applicable in all condition is:

(a) `F = (Δp)/(Δt)`

(b) F = ma

(c) `F = M (Δv)/(Δt)`

(d) all three

A body of mass 1 kg is thrown vertically up with an initial speed of 5 m s^-1. What is the magnitude and direction of force due to gravity acting on the body when it is at its highest point? Take G = 9.8 n kg^-1

A body of mass 1.5 kg is dropped from a height of 12 m. What is the force acting on it during its fall? (g = 9.8 ms⁻²)

Two balls of masses in ratio 1 : 2 are dropped from the same height find

a) the ratio between their velocities when they strike the ground and

b) the ration if the forces acting on them during motion.