5th Grade Science-Light,Sound & Heat

11 terms by emoak 

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reflection

the light energy that bounces off objects

refraction

the bending of light rays when they pass through a substance

lens

a piece of clear material that bends, or refracts, light rays passing through it

pitch

an element of sound determined by the speed which sound waves move

volume

the loudness of a sound

temperature

the average kinetic energy of all the molecules in an object

kinetic energy

the energy of motion, or energy in use

heat

the transfer of thermal energy from one substance to another

conduction

the direct transfer of heat between objects that touch

convection

the transfer of heat as a result of the mixing of a liquid or a gas

radiation

the transfer of thermal energy by electromagnetic waves

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