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Motion
motion vocab words
8
Science
5th Grade
11/03/2010

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Term
Speed
Definition
The rate or a measure of the rate of motion, especially: Distance traveled divided by the time of travel.
Term
velocity
Definition
a vector expression of the displacement that an object or particle undergoes with respect to time
Term
acceleration
Definition
the rate of change of velocity as a function of time
Term
Force
Definition
strength or energy exerted or brought to bear : cause of motion or change
Term
balanced force
Definition
when there is equal force on an object
Term
unbalanced force
Definition
When two forces are not equal they work against each other
Term
Potential energy
Definition
the mechanical energy that a body has by virtue of its position; stored energy
Term
kinetic energy
Definition
The energy possessed by a body because of its motion, equal to one half the mass of the body times the square of its.
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