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Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
        Help!  

Term
Definition
Force   A push or pull  
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Position   The location of an object  
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Friction   A contact force that opposes the motion of an object  
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Motion   A change in the position of an object  
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Magnetism   A non-contact force that pulls objects containing iron  
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Speed   The rate of which an object changes position  
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Gravity   A non-contact force that pulls objects towards one another  
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What is motion? (4)   Change of position Position is location of an object or its place Speed is rate an object changes its position If the motion of an object has a regular pattern, you may be able to predict the future motion  
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How does force affect motion? (3)   It is a push or pull Amount of force used affects the motion Mass, friction, and magnetism affect an object's motion  
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What is gravity? (2)   Non-contact force that pulls objects towards one another The pull of gravity on an object gives the object its weight  
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Variable speed   Speed that changes as it moves  
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Constant speed   Something that does not change how fast or slow it moves  
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