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physics
Term | Definition |
---|---|
Balanced Forces | Separate forces on an object that combined do not change the movement of the object. |
Force | A push or pull that can change the motion of an object |
Unbalanced Forces | 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 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 |
potential energy | stored energy (more energy up high) |
kinetic energy | energy in motion (greater energy is down low) |
velocity | speed with direction |
acceleration | change in motion, speed up, slow down, change direction |