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Transcript
Vocabulary for CMQ2 FK2: Energy energy: the ability to cause a change in matter potential energy: the energy that something has because of its position or condition kinetic energy: the energy of motion mechanical energy: the total potential and kinetic energy of an object light energy: a form of energy that can travel through space and which our sight can detect reflect: to bounce off objects refract: to bend light absorption: the stopping of light by soaking it up sound energy: a form of energy made when something moves back and forth (vibration) vibrations: a rapid motion of the particles of an elastic body or substance back and forth chemical energy: energy that can be released by a chemical change fossil fuels: include coal, oil, and natural gas; they formed from the remains of dead plants and animals heat energy: energy that moves between objects of different temperatures electrical energy: energy that comes from an electric current conductor: material that allows heat to move through it easily insulator: material that does not conduct heat well position: a certain place motion: a change of position frame of reference: the things around you that you can sense and use to describe motion speed: a measure of an object’s change in position during a unit of time (ex. 10 meters per second) force: a push or pull acceleration: a change in the speed or direction of an object’s motion friction: a force that keeps objects that are touching each other from sliding past each other easily
