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WorksheetsCU: Simple Machines
Total questions: 47
Worksheet time: 1hrs 8mins
A simple machine that consists a rigid bar that pivots on a fixed point is called a...
lever.
pulley.
wheel and axle.
fulcrum.
An axe is an example of a(n)...
pulley.
inclined plane.
screw.
wedge.
When force is used to move an object across a distance, this is called...
effort.
power.
energy.
work.
The device used to raise a flag up a flag pole is an example of a(n)...
wheel and axle.
lever.
inclined plane.
pulley.
Simple machines make doing work feel easier by...
allowing the user to apply less force over a longer distance.
the machine putting out more force than you put in but over a shorter distance.
changing the direction of the force being applied.
This is an example of which simple machine?
How much work is done if I use 5N of force to move an object 2 meters?
10 Newtons
7 Newtons
10 Joules
7 Joules
A simple machine that is made up of an incline plane wrapped around a cylinder, often used to hold things together is a...
lever.
screw.
wedge.
pulley.
A ramp is an example of which simple machine?
A fishing pole is an example of a compound machine. Which simple machines are combined together to make up this compound machine?
lever, wheel & axle, pulley
wheel & axle, inclined plane, pulley
wheel & axle, pulley, inclined plane
A shovel is a compound machine. Which types of simple machines are combined to make the shovel?
Lever & wedge
Inclined Plane & lever
Pulley & wedge
Lever & screw
__________ is the name of the simple machine that includes a rope, chain, or belt wrapped around a wheel that changes the direction of an applied force.
Wedge
Screw
Wheel & axle
Pulley
What is the name of the fixed point around which a lever is free to pivot?
balance
inclined plane
Which type of simple machine is a see-saw (teeter-totter)?
Wheel & axle
________________ is done whenever a force moves an object a distance.
Load
Friction
Force
Work
Simple machines can make work feel easier by reducing the input force needed to move an object. However, there is a trade off for decreased input. What is the trade off?
The distance the object is moved is increased.
The distance the object is moved is decreased.
The amount of work is increased.
The amount of work is decreased.
A doorknob is an example of a(n)...
wheel & axle.
inclined plane.
pulley.
wedge.
The base of a lightbulb is an example of which type simple machine?
wheel & axle
An example of a lever is a ________.
doorstop
drill
staircase
hammer
The fixed point around which a lever rotates or pivots is known as the...
wheel.
fulcrum.
balance.
base.
A simple machine that splits an object apart is a(n) _______.
inclined plane
fulcrum
wedge
lever
A ramp is an example of a(n) _______.
inclined plane
fulcrum
force
lever
The bow (front) of a boat splits the water as the boat moves. The bow of the boat is an example of which type of simple machine?
wedge
screw
ramp
lever
Using the back of a hammer makes it much easier to remove a nail from a wooden board. What kind of simple machine would the hammer be classified as if you are using it for this purpose?
Wedge
Lever
Pulley
Inclined Plane
Which of the following is NOT an example of the simple machine known as a screw?
the lid of a jar
a bolt
a drill bit
a crowbar
Which of the following is NOT one of the things a machine can do?
Changes the amount of force required.
Changes the distance over which the force is exerted.
Changes the direction of the force.
Changes the amount of work done.
Workers push a heavy box up an inclined plane and onto a moving truck. Which best explains why these workers use an inclined plane?
It makes their work easier because it requires less force.
It decreases the amount of work they have to do.
It increases the amount of friction necessary to do the task.
It makes the box weigh less.
What is the formula needed to solve for work?
W = F ÷ d
W = F × d
W = F + d
If you push a cart with a force of 60 N over a distance of 2 m, how much work have you done?
120 J
30 J
120 N
30 N
Stairs are an example of which type of simple machine?
wheel & axle
Which of the following is an example of an inclined plane?
Which of the following is an example of a wedge?
see-saw or teeter-totter
slide
crowbar
Which of the following is NOT a type of simple machine?
spring
screw
pulley
wedge
If you use a crowbar to get the lid off of a bucket, which simple machine are you using?
inclined plane
pulley
wheel & axle
lever
________________ is done whenever a force moves an object a distance.
Load
Friction
Force
Work
The metric unit for work is ___________.
Joules
Meters
Newtons
Dollars
This mouse is using which simple machine to chop down a tree?
wheel & axle
wedge
screw
pulley
A broom is an example of which type of simple machine?
inclined plane
screw
lever
pulley
wedge
The pedals, handlebars, and brake pulls on a bicycle are all examples of which type of simple machine?
Which of the following is an example of a pulley system?
Knife
Ramp
Doorknob
Window blinds
Scissors
You use a pulley to raise the block because it is easier to _____ down on the rope than it is to _____ the object upward.
push, pull
pull, push
The lever __________ the force you exert to lift the load.
reduces
increases
doesn't change
The pulley shown above is used to change the —
amount of work done lifting
direction of the applied force
weight of the object to be lifted
mechanical advantage of the rope
