Energy can be found in a number of different forms. It can be chemical energy, electrical energy, heat (thermal energy), light (radiant energy), mechanical energy (kinetic energy), and nuclear energy.

Energy is converted from one form to another, but it is never created or destroyed.

The Law of Conservation of Energy

Energy transformation is the change in energy form.

Nuclear energy is converted to mechanical energy and then into electrical energy in a nuclear power plant.

Gasoline, chemical energy, is converted to heat energy & mechanical energy by a car.

Mechanical energy is converted into thermal energy when you bounce a ball

Before bouncing

After bouncing

Solar Cell

What kind of energy transformations are shown in the following pictures?

Solar energy (light energy) Chemical Energy

Chemical Energy Heat & light energy

Wind energy Mechanical Energy

Chemical energy Mechanical Energy

Solar energy Solar energy (light energy) (light energy) Electrical Electrical EnergyEnergy

Which of the following can be used to transform chemical energy into heat energy?

A. A windmill turning

B. lighting a match

C. solar panels

D. a light bulb

Answer: B