set 5 MCQ Questions & Answers Detailed Explanation

Question : 1

Which one of the following physical quantities is represented by the shaded area in the given graph?

a) Power

b) Impulse

c) Torque

d) Work done

Question : 2

In cricket match, while catching a fast moving ball, a fielder in the ground gradually pulls his hands backwards with the moving ball to reduce the velocity to zero. The act represents

a) Newton’s third law of motion

b) Newton’s second law of motion

c) Newton’s first law of motion

d) Law of conservation of energy

Question : 3

Watt–hour meter measures

a) power

b) voltage

c) current

d) electric energy

Question : 4

It is difficult to walk on the ice than on the road because

a) Ice does not offer any reaction when we push it with our foot

b) Road is harder than the ice

c) Ice is harder than the road

d) Ice has a lesser friction than the road

Question : 5

The working principle of a washing machine is :

a) reverse osmosis

b) dialysis

c) centrifugation

d) diffusion

Question : 6

A car is moving on a road and rain is falling vertically. Select the correct answer.

a) The rain will strike both the screens

b) The rain will strike the front screen only

c) The rain will strike the wind screen only

d) The rain will not strike any of the screens