Tell me one source of heat
sun, fir
what is energy?
Ability to do work
what are 3 types of energy?
heat , light, mechanical
The ----------help us to see
light
What is the light source of energy?
some thing that can produce light
what is this?
b) and C) sun is the source of heat and light energy
This is a source of
Mechanical energy
This is a source of
Electrical energy
Thing that need energy to do work are
fan, oven , ipad
