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39 Cards in this Set
- Front
- Back
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a rod or shaft on which a wheel turns
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axle
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a combination of fixed and movable pulleys used together
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block and tackle
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a machine made up ot two or more simple machines
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compound machine
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the space between two objects or a measure of a change in position
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distance
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the amound of work done by a machine compared to the amount of work put into it
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efficiency
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on a lever, the distance from the force to the fulcrum
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effort arm
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the ability to work
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energy
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of the same quality, value, degree, or intensity
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equal
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a pulley that stays in place as the load moves
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fixed pulley
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a push or a pull
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force
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a foce that slows the motion of two objects rubbing against each other
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friction
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the turning point of lever
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fulcrum
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the natural attraction that tends to draw bodies together. Example: bodies drawn toward the center of the earth
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gravity
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slanted surface that connects one level to a higher level. A simple machine
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inclined plane
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to become greater in amount, size, degree
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increase
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a bar or rod resting on a turning point or fulcrum
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lever
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object to be moved or lifted by a lever
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load
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anything that makes world easier
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machine
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a pulley that moves with the load
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movable pulley
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having or consisting of many parts
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multiple
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the distance between two threads in a screw
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pitch
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the location of an object
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position
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what one believes will happen
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predict
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(fixed, movable) a wheel with a rope. simple machine
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pulley
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to lessen in any way, as in size
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reduce
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the opposition of a thing to movement by force
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resistance
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the distance from the fulcrum to the point where the resistance is inserted or lifted
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resistance arm
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an inclined plane that winds around a central core or shaft. a simple machine.
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screw
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the rod or axle of the wheel and axle.
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shaft
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one of variety of things used to make work easier
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simple machines
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any inclines line, surface position; slant
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slope
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circling around a central shaft
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spiral
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sharpness of rise or slope
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steep
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a group of things that act together
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system
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the spiral ridges of the screw
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threads
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not the same quality, degree or value
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unequal
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two inclined planes back to back. simple machine
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wedge
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machine where a wheel turns a rod or shaft
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wheel and exle
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what is done when a force moves an object
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work
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