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motion & energy
motion&energy
Term | Definition |
---|---|
motion | an object is in motion if its distance from another object is changing |
reference piont | a place or object used for comparison to determine if something is in motion |
distance | is the length of a path between two points |
displacement | the length and direction that an object has moved from its startingpiont |
vector | a quantity that consist of both a magnitude and a direction |
speed | the distance an object travels per unit of time |
average speed | the overall rate of speed at which an object moves |
instantaneous speed | the speed of an object at one instant of time |
velocity | speed in a given direction |
slope | the steepness of a line on a graph, equal to its vertical change divided by its horizontal change |