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Force and Motion
Review of Key Terms and Vocabulary
Question | Answer |
---|---|
Formula for Force | Mass X Acceleration |
Formula for Gravity | 9.8m/s2 |
Another word for kgm/s2 | Newtons |
Acceleration | Rate of Change of speed |
Speed | Distance/Time; how far an object moves over a certain period of time |
Weight | Mass X Force of Gravity |
Work | Force X Distance |
Potential Energy | Energy that is not being used; object is at rest |
Kinetic Energy | Energy of motion; object is in motion |
Net force | The difference between forces acted upon an object |
Balanced force | When the forces acted upon on object are the same; no movement |
Unbalanced force | When the forces acted upon an object are different; causing a change in movement |
Friction | Resistance to motion |
Velocity | An object's speed in one direction |
Motion | An object's change of position |
Force | A push or a pull |