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Muench Motion
Energy and motion
| Term | Definition |
|---|---|
| motion | change in position relative to a reference point |
| frame of reference | an object or place used as a marker for something in motion |
| speed | a rate based on distance over time |
| mass | the amount of matter in an object (technically, a measure of inertia) (different from weight) |
| force | a push or pull on an object; has strength and direction |
| inertia | the tendency of an object to resist change in its movement |
| velocity | speed + direction of travel |
| acceleration | that rate at which velocity changes |
| energy | ability to cause change (in motion) |
| kinetic energy | motion energy; proportional to mass of moving object and increases by square of its speed |
| potential energy | stored energy in a system of objects; depends on relative positions |
| temperature | average kinetic energy in particles of matter |
| conservation of energy | sum of all energy remains the same; if kinetic energy changes, some other change in energy must happen at the same time |
| energy + force | When two objects interact, each one exerts force on the other that can cause energy to transfer to or from the object. |
| waves | repeating pattern with wavelength, frequency and amplitude |
| weight | force of gravity on an object (different from mass) |
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kmuench
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