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Physics
| Question | Answer |
|---|---|
| mechanics | study of motion |
| motion | change of position |
| kinematics | how things move |
| dynamics | what causes motion |
| displacement | change in position between two distinct points |
| average speed | distance/time |
| instantaneous speed | speed at any one moment |
| uniformly accelerated motion | when the average acceleration and the instantaneous acceleration are the same |
| velocity | displacement/ delta time |
| scalar | one piece of information, a numerical value |
| vector | two pieces of information, a direction and numerical value |
| velocity-time | slope represents acceleration |
| position-time | slope represents velocity |
| average acceleration | delta v/ delta t delta change in velocity/ delta time interval |
| acceleration | change in velocity with time |