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Energy and Motion
Term | Definition |
---|---|
Motion | distance from another object is changing |
Reference point | a place or object used for comparison to determine if something is in motion |
Distance | the length of a path between two points |
Displacement | the length and direction that an object has moved from its starting point |
Vector | a quantity that consists of both a magnitude and a direction |
Speed | the distance an object travels in a certain period of time without regard to direction |
Velocity | speed in a given direction |
Acceleration | the rate at which velocity changes with time |
Scalar | measurements that have magnitude, or size only |
Energy | the ability to do work or cause change |
Kinetic Energy | energy that an object has due to its motion |
Potential Energy | stored energy that results from the position or shape of an object |
Gravitational Energy | potential energy related to an object’s height |
Elastic Potential Energy | the energy of stretched or compressed objects |
Mechanical Energy | an object’s combined kinetic energy and potential energy |
Law of Conservation of Energy | the rule that energy cannot be created or destroyed |
Work | a word that describes what is done on an object when a force is exerted on an object that causes it to move |