Simple Machines Vocabulary
Quiz by Jennifer Pendleton
Grade 7
Science
North Carolina Standard Course of Study
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12 questions
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- Q1A device that allows you to do work in a way that is easier or more effective.
pencil
calculator
machinebeast of burden
30s - Q2A simple device without moving parts that changes the size or direction of a force
complex machine
simple machinecompound machine
volume control
30s - Q3A device that combines two or more simple machines.
simple machine
thingamajig
compound machineterminator
30s - Q4The number of times a machine increases a force exerted on it.
assistance value
efficiency
power
mechanical advantage30s - Q5The rate at which work is done
acceleration
mechanical advantage
powerefficiency
30s - Q6Equals the amount of work done on an object in a unit of time (rate = time)
velocity
powermechanical advantage
upper hand
30s - Q7The force that must be applied to a machine by the user.
gravitational force
input forcenet force
output force
30s - Q8The force the machine exerts on an object.
unstoppable force
output forceeffort force
input force
30s - Q9The work done by a machine as the output force acts through the output distance.
input work
homework
output workoutput force
30s - Q10The percentage of the input work that is converted to output work.efficiency
work
mechanical advantage
power
30s - Q11The fixed point around which a lever pivots.
incline plane
axle
pulley
fulcrum30s - Q12
The ratio of output force to input force
efficiency
work
power
mechanical advantage
30s