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-the science concerd with internal and external forces acting on the body and the effect produced by those forces |
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-the study of human motion (anatomical, mechanical, and muscular nervous system) |
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-the measurement of a body's motion in a defined direction (often related to speed) |
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-strength or energy by which work is performed |
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-the rate in which velocity increases with the respect of time |
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-the amount of matter in a body |
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-the distance and direction at which force is applied to the body |
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-the capacity of a body to perform work |
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-the energy a body has when it is motion |
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-the energy that accrues because of the position a body occupies relative to the earth's surface |
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-a natural force that pulls a body towards the center of the earth |
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-the center of weight within a body |
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-movement about a center of rotation (axis) |
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-movement in a straight line from one point to another |
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-(inertia) -a body at rest will remain at rest and a body in motion will remain in motion at the same speed and in the same direction until acted upon by an outside force |
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-(acceleration) -a change in velocity of an object is directly proportional to the force producing it and inversely proportional to its mass |
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-(action and reaction) -for every action there is an equal and opposite reaction |
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-a mechanical device used to produce a turning motion about a hinged point (axis) |
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-the fulcrum is placed between the weight and the force, producing greater strength and/or speed. |
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-the weight is placed between the fulcrum and the force, producing greater strength |
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-the force is placed between the fulcrum and the weight, producing greater speed |
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