Simple Machines Vocab Review Question Preview (ID: 60718)


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Ratio of output force to input force
a) efficiency
b) work
c) power
d) mechanical advantage

Ratio of output work to input work
a) efficiency
b) simple machine
c) force
d) mechanical advantage

Power is
a) the use of a force to move an object over a distance
b) the rate at which work is done
c) ratio of output force to input force
d) the movement from one place to another

Work is
a) the transfer of energy to an object by a force that makes an object move
b) the rate at which joules are calculated
c) ratio of output to input work
d) to move from one place to another

Grooved wheel with a rope or cable wrapped around it
a) pulley
b) screw
c) wheel and axle
d) lever

A machine that does work using only 1 movement
a) simple machine
b) compound machine
c) gears
d) force

A flat, sloped surface
a) wedge
b) inclined plane
c) screw
d) power

Inclined plane wrapped around a cylinder
a) wedge
b) pulley
c) screw
d) power

Sloped surface that moves
a) wedge
b) pulley
c) screw
d) wheel and axle

Made up of a bar that pivots around a fixed point
a) pulley
b) screw
c) lever
d) wedge

Made of a shaft attached to the center wheel and both rotate together
a) lever
b) pulley
c) fulcrum
d) wheel and axle

Point around which a lever rotates
a) fulcrum
b) inclined plane
c) wedge
d) work

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