| A | B |
|---|
| energy | The ability to do work or cause change |
| kinetic energy | energy that an object has due to its motion |
| potential energy | stored energy that results from the position or shape of an object |
| gravitational potential energy | potential energy that depends on the height of an object |
| elastic potential energy | the energy of stretched or compressed objects |
| mechanical energy | kinetic or potential energy associated with the motion or position of an object |
| thermal energy | the total potential and kinetic energy of the particles in an object |
| electrical energy | the energy of moving electrical charges |
| chemical energy | a form of potential energy that is stored in chemical bonds between atoms |
| nuclear energy | the potential energy stored in the nucleus of an atom |
| electromagnetic energy | a form of energy that travels through space as waves |
| energy transformation | the process of changing one form of energy to another |
| law of conservation of energy | the rule that energy cannot be created or destroyed |
| matter | anything that has mass and occupies space |
| fossil fuel | a material such as coal that forms over millions of years from the remains of ancient plants and animals |
| combustion | the process of burning a fuel to produce thermal energy. |
