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Physics
Question | Answer |
---|---|
Force | A push or pull that can change the motion of and object |
Balanced forces | Separate forces on an object that combined do not change the movement of the object |
Unbalanced forces | Forces on an object that cause in the motion of the object |
Net Force | The sum of all the forces 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 position (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. |
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. |