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scalar and vector
| Question | Answer |
|---|---|
| scalar | a quantity with only magnitude (size) ex: 50 m |
| vector | a quantity with both magnitude and direction ex: 50m south |
| distance | total length travelled scalar, always positive |
| displacement | the change in the position of an object from the starting point to the ending point (almost like absolute value) vector, equation: change of d = df -di |
| avg speed | how fast an object is moving on average for a reaction time interval scalar, (v with a line over), m/s, always positive |
| velocity | how fast and in what direction an object is moving vector quantity |
| dropped object - initial speed = | 0 |
| thrown object - initial speed = | the speed it was thrown with |
| final speed - | speed just before hitting the ground |
| constant acceleration in the direction of motion | distance between each dot - increases, because the velocity increases, which increases the distance covered every second diagram - starts closer together, moves farther apart |
| constant acceleration in the opposite direction of motion | distance between each dot - the velocity decreases, which decreases the distance covered every second diagram - starts farther apart, moves closer together |
| constant velocity (diagram) | equally spaced, car moves same distance every second |
| at rest (diagram) | one dot |
Created by:
28catalanoa
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