science quiz motion
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| Newton's first law of motion | An object at rest stays at rest or an object that is moving at a speed in a straight direction keeps moving at that speed unless another force acts on it
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| Newton's second law of motion | The amount of force needed to make an object change its momentum depends on the mass of the object and the acceleration required
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| Newton's third law of motion | For every action there is an equal and opposite action (or force)
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| Acceleration | the rate of change in velocity
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| velocity | describes the speed and direction of an object
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| Mass | the amount of an object
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| Terminal | the greatest velocity a falling object reaches
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| Horizontal | velocity parallel to the Earth's surface
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| Centripetal | the force on an object pulling toward the center of a circular path
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| Speed | the rate of change in position (or rate of motion)
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| Rate | ratio between two different quantities
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| Inertia | property of a body that resists any change in velocity/the ability of an object to stay still or keep on going
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| Rest | zero velocity
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| Momentum | mass of an object multiplied by its velocity
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| Air Resistance | upward force of air against a moving object
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| Vertical | velocity in an up or down direction
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| Newtons | unit of measurement for force
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| Force | a push or pull exerted on one body by another
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| Forces always come in _______ | pairs
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| Two objects with the same velocity must be moving in the same _______ | direction
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| Gravity | a force that acts on all objects on Earth
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| Friction | the force that opposes the motion of two touching surfaces
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| Pressure | amount of force per unit area
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Created by:
mikey27
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