Work and energy medium

Work and Energy Quiz (Easy)

1. Work is defined as the product of:

a) Force and time b) Mass and acceleration c) Force and displacement d) Velocity and time

2. The unit of work is:

a) Newton b) Joule c) Watt d) Kilogram

3. The energy possessed by a body due to its motion is called:

a) Potential energy b) Kinetic energy c) Mechanical energy d) Gravitational energy

4. The law of conservation of energy states that:

a) Energy can be created but not destroyed b) Energy can be destroyed but not created c) Energy cannot be created or destroyed, only transformed d) Energy is always conserved in mechanical systems

5. The energy stored in a stretched rubber band is an example of:

a) Kinetic energy b) Gravitational potential energy c) Elastic potential energy d) Chemical potential energy

6. The energy obtained from food is an example of:

a) Kinetic energy b) Gravitational potential energy c) Chemical potential energy d) Elastic potential energy

7. The energy possessed by a compressed spring is an example of:

a) Gravitational potential energy b) Kinetic energy c) Elastic potential energy d) Chemical potential energy

8. The SI unit of energy is:

a) Newton b) Kilogram c) Watt d) Joule

9. Which of the following energy conversion is involved in a windmill?

a) Mechanical to electrical b) Electrical to mechanical c) Kinetic to potential d) Chemical to thermal

10. Which of the following statements is true about work?

a) Work can be negative b) Work is always positive c) Work is zero if no displacement occurs d) Work is always equal to force