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13
Science
8th Grade
10/26/2011

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Term
Position
Definition
a place occupied by a person or thing
Term
Time
Definition
the length of all things in past, present, and future
Term
Distance
Definition
place between two things
Term
Motion
Definition
the action or process of moving or of changing place or position
Term
Matter
Definition
the substance or substances of which any physical object consists or is composed
Term
Mass
Definition
a body of coherent matter, usually of indefinite shape and often of considerable size
Term
Speed
Definition
velocity over time
Term
Force
Definition
physical power or strength possessed by a living being
Term
Balanced Force
Definition
when two equal forces are applied on an object pushing both ways
Term
Velocity
Definition
rapidity of motion or operation; swiftness, speed
Term
Unbalanced Force
Definition
is one that is not opposed by an equal and opposite force operating directly against the force intended to cause a change in the object's state of motion or rest
Term
Inertia
Definition
an object at rest stays at rest until acted upon by an outside object
Term
Gravity
Definition
the force of attraction by which terrestrial bodies tend to fall toward the center of the earth
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