Question

true or falsState whethere and correct-
1. Speed is the rate of change of displacement.
2. For freely falling objects, gravity works in the upward direction.
3. Time period depend on the length of the pendulum.
4. A body in a circular path in uniform motion has a constant velocity.
5. Chemical energy is stored in the matter.
6. For normal incidence of a ray on a plane mirror, angle of incidence is 90°
7. Regular reflection spreads light in all directions.
8. SI unit of energy is m/s.​

Answer 1

Answer:

1 true

2 false

3

4

5 true

6 true

7 false

8 false

3,4 don't know