Energy Transformations

Energy transformation is the process of changing energy from one form to another, such as converting chemical energy in food into mechanical energy for movement.

The main types of energy include mechanical, thermal, chemical, electrical, radiant (light), and sound energy.

Chemical energy from food is transformed into mechanical energy (movement) and then into thermal energy (heat) due to friction.

A battery stores chemical energy.

Electrical energy is transformed into mechanical energy (for the motor) and then into sound energy (the noise it makes).

A television transforms electrical energy into light, thermal (heat), and sound energy.

When a lamp is turned on, electrical energy is transformed into light energy and thermal energy (heat).

Chemical energy is NOT produced by a lamp.

Mechanical energy is the energy associated with the motion and position of an object.

Thermal energy is the energy that comes from the temperature of matter, often felt as heat.