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8th Science Vocab

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Term
Definition
SPEED   The rate at which an object moves  
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AVERAGE SPEED   speed = Distance/Time  
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VELOCITY   tells the rate an object moves AND in which direction it moves **Think of the air traffic controller  
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ACCELERATION   change in velocity (speed and direction) of an object  
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FORCE   In science the push or pull between an object  
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MASS   the amount of matter making up an object  
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INDEPENDENT VARIABLE   what you change in your experiment OR it's the variable that your testing  
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DEPENDENT VARIABLE   it changes the independent variable It's what we measure: the information you put in the data table *doesn't depend on anything else (stands alone)  
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INERTIA   (1) the tendency of ALL objects to RESIST a change in motion (2) the MORE mass an object has the MORE INERTIA it has  
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NEWTON'S FIRST LAW   effect of balanced and unbalanced forces on an object at rest and on an object in motion  
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NEWTON'S SECOND LAW   THe amount of force needed to accelerate an object. It depends upon the mass of the object  
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MASS V.S. WEIGHT   mass: does not change with location weight: it DOES change with location. A measure of the force of gravity  
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GRAVITY   A force that is pushing down It depends on Mass and distance acts vertically down  
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Created by: aprice21
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