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Mod 1
Motion in 1 dimension
Term | Definition |
---|---|
displacement | The change in an object's position |
vector quantity | A physical measurement that contains directional info (velocity, acceleration) |
scalar quantity | A physical measurement that does not contain directional info (speed) |
velocity | The time rate of change of an object's position (how quickly an object's position is changing) |
speed | The time rate of change of the distance traveled by an object (d/t) |
instantaneous velocity | The velocity of an object at one moment in time |
average velocity | The velocity of an object over an extended period of time |
acceleration | The time rate of change of an object's velocity (how an object's velocity changes with time) |
The slope of a velocity-v-time curve is... | ...the acceleration |
The slope of a position-v-time curve is... | ...the velocity |
If the velocity is 0, | acceleration does not have to be 0. |
If acceleration is 0, | velocity does not have to be 0. |