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14 Cards in this Set
- Front
- Back
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isomentic
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excercise in which muscle pushews against muscle
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air resistance
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the frictional force air exerts on an object
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horizontal velocity
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speed that goes left to right
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vertical velocity
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speed that goes up and down
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terminal velocity
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greatest velocity reached by a falling object
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law of conservation of momentum
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the total momentum of a group of objects doesn't change unless acted upon by an outside force
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cetripetal acceleration
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acceleration of an object tword the center of a curved or circular motion
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centripetal force
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a force directed tword the center of the circle for an object moving in circular motion
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friction
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force that opposes motion between two touching surfaces
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law of gravitation
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states that any two masses exert an attractive force on each other , the amount of which depends on the mass of the two object and the distance between them
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momentum
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property that a moving object has because of its mass and velocity
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Newton's second law of motion
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States that a net force acting on an object causes the object to accelerate in the direction of the net force
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Newton's third law od motion
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describes action- reaction pair- to every action force there is an equal and opposite reaction force
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weight
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gravitaional force exerted an object by earth
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