Work And Machines 3: Question Preview (ID: 3271)

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Which of the following is NOT a wedge?
a) knife b) plow c) chisel d) ramp
Where is the input force of a wheel and axle exerted?
a) a circular distance b) a rectangular distance c) an inclined plane d) a spiral
Greg applies a force of 100 N to move a box 5 meters. How much work did he do?
a) 100 J b) 500 J c) 5 J d) 500 N
If you exert 20 N of force on a screwdriver and it exerts 40 N on a paint can lid, what is the screwdriver's mechanical advantage?
a) 2 b) 20 c) 1 d) 40
Which of the following is a compound machine?
a) first class lever b) block and tackle pulley c) wheel and axle d) screw
What is the equation for work?
a) Work = force x distance b) work = force / distance c) work = force x time d) work = force / time
What is the equation for power?
a) power = work / time b) power = work x time c) power = work x distance d) power = work / distance
Which is a complex machine?
a) scissors b) ramp c) wheel barrow d) paint can opener
No question
a) b) c) d)
No question
a) b) c) d)
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