Question

(a) Define the term 'energy' of a body. What is the SI unit of energy.
(b) What are the various forms of energy?
(c) Two bodies having equal masses are moving with uniform speeds of v and 2v respectively. Find the ratio of their kinetic energies.

Answer 1

a.The capability of doing work is called energy .

The SI Unit of energy is Joule

b.The various forms are energy are

Mechanical energy, kinetic energy, potential energy, thermal energy, light energy, chemical energy, magnetic energy , sound energy etc....

c.above