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Physics-Force/Motion
| Question | Answer |
|---|---|
| Acceleration | change of velocity over time (increasing, decreasing, or changing direction) |
| Constant acceleration | a steady change in velocity (free falling near the surface of the Earth) |
| Speed-time graphs | speed axis and time axis combine to show the acceleration via the slope |
| Negative acceleration | when an object is slowing down over time |
| Positive acceleration | when an object is speeding up or gaining speed |
| Unbalanced forces | cause an object to move or accelerate |
| Balanced forces | does not move and net force equals zero |
| Inertia | property of matter that resists change |
| Newton’s 2nd Law of Motion | acceleration of an object is equal to the net force acting on it divided by the object’s mass |
| Newton’s 3rd Law of Motion | one object exerts force on a second object, the second object exerts an equal and opposite force on the first object (action/reaction forces) |
| Centripetal force | force that keeps an object moving in a circle |
| Speed | |
| Velocity | v = d/t |
| Weight | mass x acceleration due to gravity |
Created by:
sabbourjj
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