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phys Chap4 TKA
vocab for chapter 4 BJU physical science
| Question | Answer |
|---|---|
| study of motion | mechanics |
| description of what causes movement | dynamics |
| description of how stationary things react to pushes and pulls | statics |
| what is being studied that is inside a boundary | system |
| everything outside the boundary of a system | surroundings |
| How we describe motion depends on this. | frame of reference |
| an imaginary line marked off in a distance | coordinate axis |
| a non physical continuum that orders the sequence of events | time |
| Must always be positive if any has elapsed | time |
| a positive quantity | magnitude |
| includes magnitude and direction | vectors |
| does not include direction | scalar |
| A scalar quantity that measures the route you take. | distance |
| A vector quantity that compares the ending position to the beginning position. | displacement |
| occurs when a system changes position | motion |
| Velocity is a | vector quanity |
| Acceleration can be ____ if you are slowing down. | negative |
| s = d/t is used to calculate | average speed |
| Acceleration is a ___ ____ if the formula includes velocity. | vector quantity |
| When you are speeding up you are | accelerating positively |
| When you are slowing down you are | accelerating negatively |
| description of how things move | kinematics |
| There is more than one possible ______ __ _____. | Frame of reference |
Created by:
kdcribb
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