1. Energy
Energy cannot be created or destroyed but can be
converted from one form to another. When energy
is converted, work is done. To produce electrical
energy one of the following forms of energy must
be converted:
1. mechanical energy (friction, pressure);
potential and kinetic energy
2. chemical energy (chemical action);
3. magnetic energy (magnetism);
4. heat energy (heat);
5. light energy (light).
2. MECHANICAL ENERGY INCLUDES POTENTIAL
ENERGY AND KINETIC ENERGY
POTENTIAL energy is energy stored in an object
Potential energy = mgh joules
m = mass
g = gravity
h = height
KINETIC energy is the energy of motion
kinetic energy = 1/2 mV2 joules
