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PBHS Speed&Velocity
Speed & Velocity Unit
Question | Answer |
---|---|
motion | a change in position relative to a reference point |
reference point | something used for comparison to determine motion or position |
vector quantity | a quantity that includes both magnitude and direction |
scalar quantity | a quantity that includes magnitude, only |
magnitude | size or amount |
distance | total length of a path |
displacement | distance and direction from starting point to finish point in a straight line |
vector | displacement is a ___ quantity. |
speed | distance per unit of time (distance traveled in a unit of time) |
average speed | total distance divided by total time |
instantaneous speed | speed in a moment of time |
velocity | speed with direction |
velocity formula | v = d/t |
1000 | There are ____ meters in one kilometer. |
10 | There are ____ milliseconds in ever centisecond. |
100 | There are ____ centigrams in every gram. |
velocity | Speed with direction defines ____. |
displacement | Where something ends up compared to where it started including the direction is ____. |
magnitude | size or amount is |
reference point | Motion is detected using comparison to a ____ ____. |
kilo- | The prefix meaning 1000 is __. |
centi- | The prefix meaning 1/100 is __. |
milli- | The prefix meaning 1/1000 is __. |