Simple Machines Vocabulary

Quiz by Jennifer Pendleton

Grade 7

Science

North Carolina Standard Course of Study

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Q 1/12
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A device that allows you to do work in a way that is easier or more effective.
29

pencil
calculator
machine
beast of burden

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12 questions

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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
mechanical advantage
30s
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Q5
The rate at which work is done
acceleration
mechanical advantage
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
mechanical advantage
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
mechanical advantage
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
mechanical advantage
30s
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