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

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?

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.

How much acceleration will be produced in a body of mass 10 kg acted upon by a force of 2 kgf?(g = 9.8 ms^-2)