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brunsonsvocab15
physical science
| Question | Answer |
|---|---|
| energy | the ability to do work |
| heat energy | the energy of moving particles in a substance; also called thermal energy |
| convection | the movement of heat energy through liquids and gases in currents |
| radiation | the movement of energy through space as waves |
| temperature | the average speed of the particles in a substance |
| potential energy | energy that is stored in an object |
| kinetic energy | the energy of motion |
| friction | the force between two surfaces rubbing against each other |
| sound energy | a form of energy produced by vibrating objects |
| light energy | a form of energy that travels in waves and can move through empty space where there is no air |