Work and energy hard

Work and Energy Quiz (Hard)

1. The work-energy theorem applies to:

a) Objects at rest only b) Objects in motion only c) All objects d) None of the above

2. A body possesses maximum potential energy when:

a) It is at the highest point b) It is at the lowest point c) It is in motion d) It is at rest

3. Which of the following statements is true about potential energy?

a) It is the energy of motion b) It is the energy of position c) It is the energy of light d) It is the energy of sound

4. The work done by a conservative force on an object is:

a) Always positive b) Always negative c) Sometimes positive and sometimes negative d) Always zero

5. Which of the following is an example of non-conservative force?

a) Friction b) Gravity c) Spring force d) Tension force

6. Which of the following is an example of elastic potential energy?

a) A raised weight b) A stretched rubber band c) A moving car d) A falling object

7. The energy transferred by a force acting through a distance is called:

a) Potential energy b) Kinetic energy c) Work d) Power

8. Which of the following is an example of energy transformation?

a) Electrical energy to light energy b) Kinetic energy to potential energy c) Potential energy to kinetic energy d) All of the above

9. In an elastic collision, the total kinetic energy:

a) Increases b) Decreases c) Remains constant d) Becomes zero

10. The SI unit of power is:

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