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Force & Motion

Force & Motion Vocab Review

lever a simple machine consisting of a rigid bar that rests and pivots around a support
force a push or a pull
gear a wheel with teeth evenly spaced around the rim
axle a shaft inserted into the middle of a wheel
effort the force needed to move a load
wheel & axle a simple machine consisting of a wheel to which an axle has been attached
fulcrum the support around which a lever arm pivots
load an object that requires force to be moved over a distance
inclined plane a simple machine that consists of a flat surface that slants or slopes; also called a ramp
simple machine a machine with one (or no) moving part that makes it easier to do work
friction the resistance to motion that occurs whenever the surfaces of two objects rub against each other
work force applied to a load or object that results in the object moving a distance
pulley a simple machine that consists of a grooved wheel that spins around a stationary axle; the outer rim of the wheel is grooved to accommodate a rope or chain
tradeoff the exchange of one thing in return for another; simple machines exchange force for distance
wedge a simple machine that consists of a moving inclined plane
wheel any circular object that turns around a center point or axis
Created by: njohnson104