MCQ- 10 ICSE Physics class 10 ch-1 FORCE ,WORK, POWER AND ENERGY

Principle of Conservation of Energy Quiz

1. According to the Principle of Conservation of Energy, energy:

Is destroyed when work is done Can be created from nothing Remains constant and only changes form Increases when an object is lifted

2. In a freely falling body, what happens to its energy?

Kinetic energy decreases, potential energy increases Kinetic energy increases, potential energy decreases Both kinetic and potential energy increase Total energy decreases

3. In a hydroelectric power plant, the energy transformation is:

Kinetic → Potential → Electrical Potential → Kinetic → Electrical Electrical → Kinetic → Potential Thermal → Electrical → Kinetic

4. In a simple pendulum, when is kinetic energy maximum?

At the highest point At the lowest point At the midpoint of oscillation At all points equally

5. In a freely falling object, total mechanical energy is:

Increasing Decreasing Constant Zero