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# Muench Motion

### Energy and motion

TermDefinition
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)
Created by: kmuench

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