science vocab
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| acceleration | the change in an object's speed or direction over time
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| buoyancy | an object's ability to float
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| compound machine | a machine made of two or more simple machines
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| force | a push or pull
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| free fall | the hypothetical fall of a body such that the only force acting upon it is that of gravity
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| friction | surface resistance to relative motion, as of a body sliding or rolling
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| gravity | the force of attraction by which terrestrial bodies tend to fall toward the center of the earth
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| inclined plane | one of the simple machines, a plane surface inclined to a higher level
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| inertia | an object's tendency to resist a change in motion
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| lever | a rigid bar that pivots about one point and that is used to move an object at a second point by a force applied at a third
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| lift | to move or bring (something) upward from the ground or other support to a higher position; hoist
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| magnetic force | a force produced by interacting magnetic poles
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| mass | the quantity of matter in an object
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| momentum | force or speed of movement; impetus, as of a physical object or course of events
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| motion | the action or process of moving or of changing place or position; movement
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| Newton's laws of motion | the rules and formulas for force, motion, acceleration, and mass
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| pressure | the exertion of force upon a surface by an object, fluid
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| pulley | a wheel, with a grooved rim for carrying a line, that turns in a frame or block and serves to change the direction of or to transmit force
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| screw | a simple machine that is an inclined plane wrapped around a cylinder to form a spiral
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| simple machine | a machine that changes the amount, distance, or direction of a force needed to do work
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| speed | rapidity in moving, going, traveling, proceeding, or performing; swiftness; celerity
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| wedge | a piece of hard material with two principal faces meeting in a sharply acute angle, for raising, holding, or splitting objects by applying a pounding or driving force, as from a hammer
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| weight | the force that gravitation exerts upon a body
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| wheel and axle | a simple machine consisting of two attached circular objects of different sizes that rotate together
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| work | a force applied to an object and the object moves as a result of the force
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Created by:
AHoldeman
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