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FE-Physics

TermDefinition
friction a force that opposes motion between two surfaces that are touching
heat the transfer of energy between objects of different temperatures
resistance force the force which an effort force must overcome in order to do work on an object
electromagnetic waves a wave that can travel through space or matter and consists of changing electric and magnetic fields
physical change a change that affects one or more physical properties of a substance
phase change a change in state of matter
absolute zero the lowest possible temperature or 0K
wavelength ­the distance between one point on a wave and the corresponding point on an adjacent wave in a series of waves
thermal expansion an object expands due to addition of heat
sound waves a longitudinal pressure wave of audible or inaudible sound
radiation transfer of energy through electromagnetic waves and can travel through empty space
reflection the bouncing back of a wave after it strikes a barrier or an object
average kinetic molecular energy the temperature of an object
infrared waves waves that are between microwaves and visible light
celsius to kelvin conversion K=C°+273
photons energy released by an electron that moves to a lower energy level in an atom
convection the transfer of thermal energy by the movement of a fluid
refraction the bending of a wave as it passes at an angle from one medium to another
conduction heat transferred by direct contact between two substances
pitch how high or low a sound is perceived to be
Created by: lrenck
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