Simple Machines Vocabulary

Quiz by Jennifer Pendleton

Science
North Carolina Standard Course of Study

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12 questions
• Q1
A device that allows you to do work in a way that is easier or more effective.

pencil

calculator

machine

beast of burden

30s
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• Q2
A simple device without moving parts that changes the size or direction of a force

complex machine

simple machine

compound machine

volume control

30s
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• Q3
A device that combines two or more simple machines.

simple machine

thingamajig

compound machine

terminator

30s
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• Q4
The number of times a machine increases a force exerted on it.

assistance value

efficiency

power

30s
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• Q5
The rate at which work is done

acceleration

power

efficiency

30s
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• Q6
Equals the amount of work done on an object in a unit of time (rate = time)

velocity

power

upper hand

30s
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• Q7
The force that must be applied to a machine by the user.

gravitational force

input force

net force

output force

30s
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• Q8
The force the machine exerts on an object.

unstoppable force

output force

effort force

input force

30s
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• Q9
The work done by a machine as the output force acts through the output distance.

input work

homework

output work

output force

30s
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• Q10
The percentage of the input work that is converted to output work.
efficiency

work

power

30s
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• Q11
The fixed point around which a lever pivots.

incline plane

axle

pulley

fulcrum
30s
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• Q12

The ratio of output force to input force

efficiency

work

power