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Vcterms, units 2
Term | Definition |
---|---|
Motion | a change in an object's position relative to a reference point |
Displacement | Distance and direction of an object's change in position from the starting point |
Speed | Distance an object travels per unit of time |
Velocity | the speed and direction of a moving object |
Momentum | Property of a moving object that equals its mass times its velocity |
Acceleration | rate of change of velocity; can be calculated by dividing the change in the velocity by the time it takes the change to occur |
centripetal acceleration | Acceleration of an object towards the center of a curved or circular path |
Average speed | Total distance an object travels divided by the total time it takes to travel that distance |
Distance | the length an object travels, measured in SI units of meters |
Instantaneous speed | Speed of an object at a given point in time, in constant for an object moving with constant speed, and changes with time for an object that is slowing down or speeding up |