Page 77 - full
P. 77
4. Electrical energy:
Electrical energy is the energy newly derived from electrical potential energy.
Electrical gadgets like bulb, fan, heater, air conditioner, etc. work with the help of
electrical energy.
Fan Heater Air conditioner
5. Mechanical Energy:
Mechanical energy is energy due to the motion or position of an object. It is of two
types:
: Kinetic energy
: Potential energy
Kinetic energy:-
It is the energy due to the motion. A moving
object has kinetic energy. Energy of moving
water and wind are examples of kinetic
energy.
Potential energy:- Moving water
Energy due to the position of an object is called potential energy. For example, a box
kept on a height and a stretched spring have potential energy.
A box kept on a height Stretched Spring
81 81