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physical sciencee

physical science

QuestionAnswer
simple machine has only one movement
machine a device that makes work easier by changing the size or direction of the applied force
joule SI unit for work
friction causes the output work of a machine to be less than the input work
power the rate at which work is being done
mechanical advantage the ratio of the output force to the input force
wedge a moving inclined plane
watt the unit of measurement of power
wheel and axle two rigidly attached wheels that rotate together
inclined plane a sloped surface
work exertion of force on an object that produces motion
output force the force a machine exerts
efficiency a machines ability to convert work input into work output
ideal machine machine with 100% efficiency
fulcrum the pivot point of a lever
screw an inclined plane wrapped around a post or something like
pulley a grooved wheel that redirects force using a rope
input force the effort force you exert
wheel and axle two rigidly attached wheels that rotate together
inclined plane a sloped surface
work exertion of force on an object that produces motion
output force the force a machine exerts
efficiency a machines ability to convert work input into work output
ideal machine machine with 100% efficiency
fulcrum the pivot point of a lever
screw an inclined plane wrapped around a post or something like
pulley a grooved wheel that redirects force using a rope
input force the effort force you exert
work formula force times distance or power times time
efficiency formula workout/workin
power formula work/time
mechanical advantage formula outputforce/inputforce
Created by: lmurray
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