Question

Tick (/) the correct option:
a. Work is said to be done when-
i. A force acts on a body and it does not move
ii. A body moves on its own
iii. A body moves when a force acts on it
iv. None of these
b. When an object is placed on a hill top, it possesses-
i. Electrical energy
ii. Kinetic energy
iii. Potential energy
iv. Solar energy
C. The SI unit of energy is-
i. newton
ii. metre
iii. joule
iv. metre²​

Answer 1

Answer:

a) don't know

b) iii) Potential energy

c) iii) joule(J)