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Physics
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Question | Answer |
---|---|
Motion | the change in an objects position with respect to time and in comparison to the position of other object used as a reference points |
speed | The rate of change of positions (or distance traveled) with respect to time; units in which speed is measured are expressed as distance per time (example: meters per second). |
Direction | a straight path that an object can move along |
Friction | Force that opposes the motion of one surface across another |
Force | A push of pull that can change the motion of an object |
balanced forces | Separate forces on on object that combined do not change the movement of the object |
unbalanced forces | Forces on on abject that cause change in the motion of the object |
Net Force | The sum of all the forces acting on an object |
At rest | the state of an object when it is not in motion |