| Term | Definition |
| energy | the abitilty to cause changes in matter;the ability to do work |
| law of conversation of energy | a law that states the total amount of energy in a system is always the same, and that energy cannot be created or destroyed |
| kinetic energy | the energy of motion |
| potential energy | the energy that exists due to the position or condition of an object |
| thermal energy | the kinetic energy of moving particles of a substance or object |
| heat | the transfer of thermal energy |
| conduction | the transfer of thermal energy that results from the collision of particles |
| convection | the trasnsfer of thermal energy through liquids and gases |
| radiation | the transfer of thermal energy as waves |
| magnet | an object which has all the domains pointing in the same direction and magnetic fields that work together |
| electricity | the interaction of electric charges- usually classified as static electricity of current electricity |
| electric energy | the movement of electrons from one place to another; current electricity |
| circut | the connection needed for current to travel between the poles of 2 electric energt sources |
| electromagnet | a device made when electric current travels through a wire coiled around a piece of iron |
| chemical energy | a form of potential energy stored in reactants |
| nuclear energy | the energy that holds protons and nuetrons together in an atom's nucleus |
| fission | the reaction that releases nuclear energy when a nucleus breaks into 2 parts |