science final 9th mpcs chapter 11
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14 terms
Terms | Definitions |
|---|---|
 what is frame of reference and how does it measure motion? | aren't moving with respect to each other; velocity and direction |
| what are the SI units for distance? | meter |
| what is distance? | length |
| what is displacement? | length and direction |
| what is vector addition? | if same diriction add and if in different directions then subtract |
| what are the SI units for speed? | m/s |
| what is average speed? | the speed your going the entire trip |
| what is instantaneous speed? | speed at one point in time |
| how do you make a distance time graph? | time on bottom and distance on side |
| how do you caculate an object using slope? | rise / run |
| how do velocities combine? | vector addition |
| what is a change in motion that produces acceleration? | changes in speed and direction |
| What is constant acceleration? | even if you turn and stufflike that but you are going a constant speed then it counts |
| how do you caculate acceleration of an object? | a=v2-v1/t or a=net force/mass |
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