## Work & Simple Machines

Last Updated By amy.west on 02/14/2013
211 people took this quiz
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# Which formula is used to calculate work?

 a)  P=w/t
 b)  output force (Fo) / input force (Fi)
 c)  force X distance
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• AC QUESTION
Which formula is used to calculate power?
a)force X distance
b)work/time
c)Fo/Fi
b)Fo/Fi
• Which formula is used to calculate general mechanical advantage?
a)output force (Fo) / input force (Fi)
b)input force (Fi) / output force Fo)(
c)output work / input work
a)output work / input work
• Which formula is the specific formula we used to find the mechanical advantage of a lever?
a)length / height
b)slope / thickness
c)input arm / output arm
c)input arm / output arm
• Which formula is the specific formula we used to find the mechanical advantage of an inclined plane?
a)height / length
b)length/ height
c)thickness/slope
b)thickness/slope
• Which formula is the specific formula we used to find the mechanical advantage of a wedge?
a)length / height
b)slope / thickness
c)thickness + slope
b)thickness + slope
• AC QUESTION ONLY
Which formula is the specific formula we used to find the mechanical advantage of a screw?
a)length / height
b)pitch / circumference
c)circumference / pitch
c)circumference / pitch
• AC QUESTION ONLY
Which formula is used to calculate mechanical efficiency?
a)output work / input work
b)output work / input work X 100
c)input work / output work X 100
b)input work / output work X 100
• TRUE or FALSE
In order for work to be done on an object, the object MUST move in the direction of the net force.
a)false
b)true
c)huh?
b)huh?
• On a machine, the output force is ________

a)the person putting effort into the machine
b)the output work
c)the weight of the object being moved
c)the weight of the object being moved
• What is the MA of the middle pulley in the picture?
a)1
b)2
c)3
b)3
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Work & Simple Machines
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Free Quiz Question From Work & Simple Machines
Question: Which formula is used to calculate work?
P=w/t
output force (Fo) / input force (Fi)
force X distance
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