| A | B |
|---|
| energy that travels through matter | mechanical energy |
| energy stored in chemical bonds | chemical energy |
| consists of a flow of electric changes through conductor | electrical energy |
| transfer of thermal energy between substances that are different temperatures | heat energy |
| type of energy humans can see | light energy |
| energy that travels through matter as mechanical waves heard by ear | sound energy |
| measure of the average kinetic energy of the particles, C or F | temperature |
| form of energy that travels thorugh space and matter; visible light, radio, x-ray... | electromagnetic spectrum |
| thremal energy travels from higher to lower temperatures | heat transfer |
| zero on the Kelvin scale, all particle motion stops | absolute zero |
| change from solid to liquid to gas | phase change |
| temperature at which subsantce changes from liquid to solid | freezing point |
| temperatrue at which substance changes from solid to liquid | melting point |
| temperature at which substances change from liquid to gas | boiling point |
| transfer of heat from warmer substance to cooler through direct contact | conduction |
| transfer of thermal energy in a fluid to warmer fluid rises, cooler sinks | convection |
| transfer of energy in electromagnetic waves and nuclear radioactive elements | radiation |
| change material from liquid to gas | vaporization |
| the change of substance from gas to liquid due to loss of heat | condensation |
| distance from any point on one wae to a corresponding point on the next | wavelength |
| the number of wave vibrations per second in hertz | frequency |
| total distance wave moves from its resting position | amplitude |
| the ability of two or more waves to combine and form a new wave | interference |
| bouncing back a waves from a surface | reflection |
| landing of wave as it moves across the boundary between one medium and another | refraction |
| a back and forth motion that travels from one place to another | wave |
| full range of electromagnetic waves | electromagnetic spectrum |
| occurs when a force is used to move an object a distance | work |
| a push or pull | force |
| a description of how many times a simple machine multiplies force put into it | mechanical advantage |
| comparison of amount of energy used per amount of work done | efficiency |
| the amount of work done or energy used in a unit of time | power |
| force of attraction between two objects | gravity |
| distance traveled by an object in a given amount of time | speed |
| an objects speed and direction at a given instant | velocity |
| amount of matter in something | mass |
| a measure of the force of gravity on an object; directly related to the objects mass | weight |
| change in an objects speed or direction over time | acceleration |
| a device that makes work easier b changing size and direction of force | simple machines |
| a machine made of 2 or more simple machines that work together | compound machines |
| any object shot or thrown through the air | projectiles |
| general term for interaction of electric charges | electricity |
| force attractive/repulsive force between magnetic materials at poles | magnetism |
| electric charges build up on an object, the movement off is static discharge | static electricity |
| the amount of electric charge that move past a point each second | current |
| path that electric current flows | circuits |
| region of magentic force around an object | magnetic fields |
| magnet made by passing an electric current through a wire wrapped around an iron rod | electromagnet |
