| A | B |
|---|
| Energy | The ability to cause change. |
| Kinetic Energy | Energy due to motion. |
| Potential Energy | Stored energy due to the interactions between objects or particles. Can be increased by increasing the height of the object. |
| Work | The amount of energy used as a force moves an object over a distance. |
| Mechanical Energy | Sum of the Potential Energy and the Kinetic Energy in a system. |
| Thermal Energy (Heat) | The friction caused from the movement of atoms |
| Entropy | As energy is transformed some is lost as unwanted energy due to friction which causes thermal and sound energy. It's a measure of the energy that is unavailable for doing useful work. |
| Law of Conservation of Energy | A statement that energy can be transformed or changed from one form to another, but it cannot be created or destroyed |
| Friction | A force that opposes motion between two surfaces that are in contact, this is always accompanied by heat loss |
| Energy of Transformation | A change from one form of energy to another |
| Energy Transfer | Movement of the SAME energy from one place or object to another |
| Air Resistance | a frictional force acting on an object that is moving through air flowing in the opposite direction |
| Efficiency | Comparison of work input verses work output; measured as a percentage |
