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Force and Motion Vocabulary
NC 5th grade Force and Motion words
10
Science
5th Grade
04/12/2010

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Term
energy in the form of a push or a pull
Definition
force
Term
moving something from one
place to another
Definition
motion
Term
the rate at which velocity changes, or how fast something travels
Definition
speed
Term
a force that pulls
everything toward the center of the Earth
Definition
gravity
Term
a measure of the force of gravity on an object
Definition
weight
Term
the combination of all the forces acting on an object
Definition
net force
Term
the force that happens when two things rub together
Definition
friction
Term

An object moving in a straight line will continue moving in a straight line, unless acted on by an outside force.

Also, an object at rest will remain at rest, unless acted upon by an outside force.

Definition

Law of Inertia

or

Newton's 1st Law

Term

Force will cause a change in the motion of an object. The change in motion depends on the amount of force and the mass of the object.

There is a formula for this F=ma (force equals mass times acceleration).

Definition
Newton's 2nd Law
Term
For each action, there is an equal and opposite reaction.
Definition
Newton's 3rd Law
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