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Motion
Question | Answer |
---|---|
Motion | a change in position |
position | the location of an object |
frame of reference | group of objects from which you can measure a position or motion (can move) |
speed | how fast an object's position changes |
velocity | measurement that combines speed & direction |
acceleration | change in velocity over time |
mass | amount of matter in an object |
momentum | comparison of mass and velocity (more an object has, the easier to move other objects) |
inertia | tendency to resist change |
Calculation of Speed | distance divided by time |
Calculation of Velocity | direction divided by time |
Calculation of Acceleration | final velocity - initial velocity divided by time |
Calculation of Momentum | mass x velocity |
Units of Distance | kilometer (km) meter (m) decimeter (dm) centimeter (cm) millimeter (mm) micrometre (micron) nanometer (nm) angstrom |
Units of Speed | miles per hour meters per second kilometers per hour |
Units of Acceleration | Meters per second squared |
Units of Momentum | kg x m/s |
Why do different frames of reference see things differently? | different perspective |
How can you be moving in one frame of reference and not in another? | ? |
Which is harder to move, a bowling ball or baseball? Why? | Bowling Ball - heavier. The more mass, the more inertia, the harder it is to move |