Work, Energy and Power

Here are some MCQs on Work, Energy and Power

1. Which of the following is a scalar quantity?

a) Work

b) Energy

c) Power

d) Force

2. The SI unit of work is:

a) Joule

b) Watt

c) Newton

d) Kilogram

3. Which of the following equations represents work?

a) W = mgh

b) W = Fd

c) W = Pt

d) W = mv

4. The work done on an object is equal to the:

a) Force applied on the object times the distance it moves

b) Acceleration of the object times the time it takes to move

c) Mass of the object times the acceleration due to gravity

d) Velocity of the object times the time it takes to move

5. Which of the following is a form of potential energy?

a) Thermal energy

b) Kinetic energy

c) Chemical energy

d) Electric energy