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Ch 14 vocab 8th gr

8th gr Ch 14 vocab

any device that makes doing work easier machine
the number of times a machine multiplies the input force mechanical advantage
output force divided by input force mechanical advantage
the percentage of the input work done on a machine that the machine can return in output work efficiency
a machine's output work divided by its input work and multiplied by 100 efficiency
one of the basic machines on which other mechanical machines are based simple machines
the inclined plane, wheel and axle, pulley, wedge, and screw simple machines
a solid bar that rotates or turns around a fixed point lever
fixed point around which a lever rotates fulcrum
a simple machine that is a wheel attached to a shaft or axle wheel and axle
a wheel with a grooved rim that turns on an axle pulley
a simple machine that is a sloping surface inclined plane
ramp inclined plane
a simple machine that has a thick end and a thin end wedge
used to cut, split, or pierce objects or to hold together wedge
a simple machine that is an inclined plane wrapped around a cylinder screw
used to raise and lower weights, as well as fasten objects screw
a machine that is made up of two or more machines compound machine
the science and technology of building electronic circuits and devices from single atoms and molecules nanotechnology
a machine that works automatically or by remote control robot
Created by: fhershey