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18 Cards in this Set
- Front
- Back
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force
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an influence on the shape, motion, or other characteristics of a body or system.
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friction
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the resistance of a surface to relative motion, as of an object sliding or rolling over it.
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fulcrum
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the point of support on which a lever turns.
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inclined plane
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a plane surface inclined at less than a right angle to a horizontal surface, used to roll or slide a load up or down.
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lever
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any of a class of basic tools consisting of a rigid bar or an equivalent, acting by pivoting around a fixed fulcrum to transfer applied force from one point to another.
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load
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an amount of something carried; cargo or freight.
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machine
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a man-made device, usu. driven by a motor or engine, with a system of interrelated parts that work together to perform a task
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axle
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a supporting bar or shaft on which, or by means of which, a wheel or wheels turn.
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power
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physical, mechanical, or electrical energy.
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pull
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to bring or try to bring closer by exerting force upon.
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pulley
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a wheel or set of wheels with grooved edges over which a rope or chain can be drawn in order to change the direction of a pulling force and increase the capacity for lifting weight.
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push
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to thrust (something) away.
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screw
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a fastener, usu. metal, having a sometimes tapered shank with a helical thread, driven into a surface by applying pressure to the head while turning it.
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spring
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an elastic device or object that regains its original shape after being compressed, stretched out, or otherwise distorted.
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tool
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an instrument, such as a hammer, drill, or other hand-held device, used for doing work.
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torque
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the measured ability of a force to produce turning or twisting around an axis, such as a gear or shaft.
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wedge
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a piece of wood or metal in a three-dimensional, triangular shape with a thin edge that is driven or forced between objects to split, lift, or reinforce them.
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wheel
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any instrument, device, or apparatus resembling such a disk or frame in shape, motion, or function.
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