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unit 5 energy
Term | Definition |
---|---|
energy | the ability to cause change in matter |
matter | anything that has mass and takes up space |
three states of matter | solid, liquid, and gas |
potential energy | the energy an object has because of its position or condition |
kinetic energy | energy an object has because of its movement |
electrical energy | energy that is caused by the movement of electric charges |
chemical energy | energy that can be released by a chemical reaction |
thermal energy | total kinetic energy of the particles in matter |
light energy | form of energy that you can see |
sound energy | energy that travels through waves of vibrating matter |
mechanical energy | combination of potential and kinetic energy an object contains. |
heat | energy transferred between substances with different temperatures |
temperature | measure of the average kinetic energy of the particles in a substance |
radiation | transfer of energy in waves without matter to carry it |
conduction | transfer of energy between particles that are in contact |
convection | transfer of energy by currents in a liquid or a gas |
solar radiation | most important energy resource on Earth |
combustion of fuels | second most important energy resource on Earth |
electric current | flow of electic charges along a path |
static electricity | build up of electric charges on an object |