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Science Ch. 9 Vocab
The vocabulary words for chapter 9 in the Physical Science book.
| Term | Definition |
|---|---|
| motion | an object's distance 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 the object travels per unit of time |
| average speed | divide the total distance traveled by the total time (d divided by t = v) |
| instantaneous speed | the rate at which an object is moving and given an instant in time |
| velocity | speed in a given direction |
| slope | the steepness of a line on a graph |
| acceleration | the rate at which velocity changes with time |
| work | when an object is caused to move a certain distance |
| energy | the ability to do work or cause change |
| kinetic energy | the energy 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 related to an object's height |
| elastic potential energy | the potential energy of objects that can be stretched or compressed |
| mechanical energy | an object's combined kinetic energy and potential energy |
| law of conservation of energy | when one form of energy is transformed to another, no energy is destroyed in the process |