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Energy and Motion
Question | Answer |
---|---|
Reference Point | an object used for comparison to determine motion |
Motion | whether or not an object is in motion depends on the reference point you choose |
Distance | the length of a path between 2 points |
Displacement | length and direction that an obj moved from starting point |
Vector | both magnitude and direction |
Scalar | quantities described only by magnitude |
Speed | the distance an object travels per unit of time |
Velocity | speed in a given direction |
Acceleration | the rate at which velocity changes |
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 Potential Energy | potential energy that depends on the height of an object |
Elastic Potential Energy | the energy of stretched or compressed objects |
Mechanical Energy | kinetic or potential energy associated with the motion or position of an object |
Work | this is done when an object is caused to move a certain distance |
Law of Conservation of Energy | the principal stating that matter is not created or destroyed during a chemical reaction |