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4th Science

5th Grade Force and Motion Terms

TermDefinition
Texture the feel of an object's surface
Weight the pull of gravity on an object
Unbalanced Forces forces acting on an object that changes its motion
Balanced Forces forces acting on an object that do not change its motion
Speed the rate at which an object changes position
Position the location of an object
Direction the path that a moving object follows
Lubrication substance that reduces friction
Force a push or pull
Friction a force that acts between objects that touch or rub together
Gravity the force that pulls all objects toward each other
Momentum the strength or force that something has when it is moving
Newton's First Law an object at rest will stay at rest and an object in motion will stay in motion until an outside force acts upon it.
Newton's Second Law Force=Mass x Acceleration
Newton's Third Law For every action there is an equal and opposite reaction
Rate of Motion an objects speed
Inertia tendency of an object to remain at rest or in motion unless it is acted upon by an outside force
Reference Point A place or object used to determine if an object is in motion
Velocity the speed and the direction an object is moving
Created by: Seel
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