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Simple Machines

QuestionAnswer
simple machine a tool used to make work easier
work a force causing a movement or displacement of an object
inclined plane a flat, sloped surface
examples of inclined planes ladder, slide, stairs, ramp, funnel, etc.
screw an inclined plane wrapped around a cylinder
examples of a screw end of a light bulb, nut & bolt, drill bit, bottle top, etc.
wedge two inclined planes placed back-to-back
examples of a wedge axe, chisel, fork, cheese grater, shovel, needle, etc.
lever a rigid bar that moves freely around a fixed point
fulcrum the fixed point on a lever
load the object or weight to be moved; also known as the resistance
effort the push or pull applied to a lever; the force that moves the load
examples of a lever crowbar, hammer, stapler, broom, scissors, tongs, etc.
wheel & axle two different sized circular objects that are attached together and turn as one
examples of a wheel & axle pizza cutter, wheelbarrow, ceiling fan, door knob, rolling pin, etc.
pulley a grooved wheel with a rope or cable wrapped around it
examples of a pulley window blind, flag pole, elevator, exercise equipment, garage door, etc.
compound machine a machine made up of more than one simple machine
examples of a compound machine can opener, crane, escalator, bulldozer, fishing rod, stapler, scissors, etc.
Archimedes an ancient Greek scientist who made mathematical discoveries as he solve everyday problems with his inventions
Created by: mtrump
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