Page 1 - ENERGY AND ITS FORMS (MECHANICAL ENERGY, LIGHT ENERGY AND HEAT ENERGY)

CHAPTER 10 – FORCE, ENERGY AND SIMPLE MACHINES

TOPIC – ENERGY AND ITS FORMS

(MECHANICAL ENERGY, LIGHT ENERGY AND HEAT ENERGY)

DIFFERENT
FORMS OF
ENERGY

LIGHT HEAT ELECTRICAL WIND HYDRO
ENERGY ENERGY SOUND SOLAR
ENERGY ENERGY ENERGY ENERGY ENERGY

MECHANICAL

ENERGY

KINETIC
ENERGY

POTENTIAL
ENERGY

ENERGY

 Energy is the capacity or ability of a body to do work.
 We need energy from the food we eat for performing different activities in our daily life.
Non –living things such as a car, a bulb, a tube light, a fan etc. also need energy in
different forms to work.
 Energy can exist in different forms such as mechanical energy, heat energy, chemical
energy, sound energy, muscular energy, solar energy, wind energy, etc.

FORMS OF ENERGY:

1. MECHANICAL ENERGY - Mechanical energy of an object is its energy due to its position
or its motion or both. Mechanical energy is classified into potential energy and kinetic
energy based upon its source of origin.