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Physics
Physics flash card
Term | Definition |
---|---|
Force | a push or a pull that can change the motion of an object |
balanced force | separate forces on an object that combined do not change the movement of the object |
unbalanced force | forces on an object 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 |
motion | the change in an object's position with respect to time and in comparison to the position of other objects used as reference points |
speed | the rate of change of the position with respect to time |
direction | a straight path that can move along |
friction | a force that opposes the motion of one surface across another |
frame of reference | a system that uses axes or background objects to measure the position or movement of an object |
velocity | measurement of speed and direction of an object |
acceleration | the rate of change in an object's speed |