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Chapter-9 Section-4
definitions
Term | Definition |
---|---|
Work | is done when an object is caused to move a certain distance. |
Energy | the ability to do work or cause change is called energy. |
Kinetic Energy | the energy an object has due to its motion is called kinetic energy |
Potential Energy | stored energy that results from the position or |
Speed | the speed of an object is the distance the object travels per unit of time |
Average Speed | to calculate average speed (v), divide the total distance traveled (d) by the total time |
Instantaneous Speed | instantaneous speed is the rate at which an object is moving at a given instant in time |
Velocity | (v) is speed in a given direction. |