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Unit 2 study words 33

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
Force   a push or pull  
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Agent   object that produces/has the force  
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Receiver   object that gets the force  
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Effect   what happens  
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Contact Force   force has to touch the object  
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Non Contact Force   force doesn't touch the object  
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Motion   an object changes position over time  
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Opposing Forces   forces that work against each other  
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Balanced Forces   forces that work against each other but are equal in size and have no motion  
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Unbalanced Forces   forces that work against each other and are unequal in size and create motion  
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Spring Scale   measuring force in Newtons  
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Newton   measuring unit for force  
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Magnitude   size of something  
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Vectors   a simple diagram showing force with arrows  
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Net Force   force result after two forces work on an object (total) (- from opposing) (+ for same)  
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Gravity   a force of attraction between objects hat is due to their masses  
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Isaac Newton   discovered gravity in the summer due to an apple falling on his head  
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Attractive Force   forces that pull objects to themselves  
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Weight   a measure of the gravitational for exerted on an object  
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Mass   the amount of matter something is made of  
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Friction   two forces make contact, Tool: spring scale Unit: Newtons  
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Rolling Friction   one round surface makes contact  
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Sliding Friction   two surfaces rub/slide across  
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Static Friction   STAY STILL : stops movement  
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Fluid Friction   one surface must be either liquid or air  
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Speed   how fast an object is moving, S= D divided by T  
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Velocity   speed plus direction, V= S plus Direction  
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Acceleration   a change in Velocity final V - staring V divided by time it took to change  
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Momentum   power an object has M= M * V  
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Newtons First Law Of Motion   an object at rest will stay at rest, an object in motion will stay in motion, until acted upon by a force  
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Newtons Second Law Of Motion   acceleration of an object depends on mass and force  
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Newtons Third Law Of Motion   one object exerts a force on another object, exerts a force right back  
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