Question

Choose the correct option.
1. The potential energy is directly proportional to
(a) mass and height of the body
(b) mass of the body
(c) height of the body
(d) none of these
2. While burning the wood, the chemical energy changes to
(a) kinetic energy
(b) heat energy
(c) potential energy
(d) mechanical energy
3. When you kick a ball lying on the ground, the potential energy changes to
(a) heat energy
(b) electrical energy (c) kinetic energy
(d) nuclear energy
4. Which of the following is not a unit of energy?
(a) Joule
(b) Nm
(c) Newton
(d) Calorie
5. When fire crackers burst, the chemical energy changes to
(a) heat energy
(b) sound energy
(c) light energy
(d) heat, sound and light energy
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Answer 1

Answer:

1. 1.mass of the body
2. heat energy
3. kinetic energy
4. newton
5. heat sound and light

Answer 2

ANSWER :-

1. Height of the body

2. Heat energy

3. Kinetic energy

4. Nm

5. Heat energy

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