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WorksheetsSimple Machines
Total questions: 45
Worksheet time: 4hrs 45mins
Name
Class
Date
1.
Which is not a type of simple machines?
a)
spring
b)
screw
c)
pulley
d)
wedge
2.
Work is
a)
energy from the sun
b)
a force that moves an object
c)
a type of machine
d)
a force that pulls you towards the Earth
3.
What is the fixed point upon which a lever rotates?
a)
fulton
b)
fulcrum
c)
furmen
d)
falcon
4.
Which of these is an example of a wedge?
a)
skateboard
b)
broom
c)
stairs
d)
butter knife
5.
A screw is made up of _________ wrapped around a post or rod.
a)
treads
b)
springs
c)
threads
d)
strings
6.
Which of these is not an example of an inclined plane?
a)
ladder
b)
stairs
c)
wall
d)
driveway
7.
Which is an example of someone using a simple machine to do work?
a)
a boy runs across a football field
b)
a banker counts money
c)
a mother puchses a stroller up a ramp into a building
d)
a girl eats a sandwich
8.
Which is a characteristic of simple machines?
a)
they run on electricity
b)
they take a long time to make
c)
they have few or not moving parts
d)
they are not very large
9.
Which type of simple machine would be found on the bottom of a wagon?
a)
a pulley
b)
a screw
c)
a wedge
d)
a wheel and axle
10.
What two parts might make a pulley?
a)
wheel and axle
b)
wheel and rope
c)
wheel and screw
d)
wheel and fulcrum
11.
Which simple machine is found on the head of an ax?
a)
wedge
b)
lever
c)
pulley
d)
screw
12.
What simple machine holds things together?
a)
Wedge
b)
Screw
c)
Lever
d)
Pulley
13.
What kind of work is made easier by the wheels of this object?
a)
pushing a heavy load
b)
lifting a heavy load
c)
dividing a heavy load
d)
holding a small load
14.
What type of simple machine are these people using to move the wheel chair into the school bus?
a)
lever
b)
wedge
c)
inclined plane
d)
pulley
15.
A push or pull that can move an object is a
a)
fulcrum
b)
force
c)
machine
d)
lever
16.
What is anything that makes work easier called?
a)
screw
b)
wedge
c)
force
d)
machine
17.
A machine with few or no moving parts is called a ______.
a)
machine
b)
compound machine
c)
simple machine
d)
work
18.
This picture shows an example of what type simple machine?
a)
pulley
b)
wedge
c)
lever
d)
wheel and axle
19.
A bicycle is an example of a _________________.
a)
simple machine
b)
wheel
c)
pulley
d)
compound machine
20.
A door stop is an example of a
a)
Screw
b)
Wedge
c)
Lever
d)
Inclined Plane
21.
Identify this simple machine
a)
Lever
b)
Wheel & Axle
c)
Inclined Plane
d)
Screw
22.
Which of the following does a simple machine do?
a)
allows the users to apply less force over a longer distance
b)
reduce the amount of force needed to do work
c)
change the direction of the applied force
d)
all of the above
23.
What is resistance (output) force?
a)
the force required by a machine in order to accomplish work (the force you put on the machine)
b)
the force which an effort force must overcome in order to do work on an object via a simple machine.
c)
the force the machine exerts on a object
d)
the output work times the input distance
24.
Using a lever, Joe is able to lift a 10,000 N car off of the ground with a force of 1000 N. What is the mechanical advantage of the lever?
a)
1
b)
10
c)
100
d)
1000
25.
If I have a wedge with a MA of 5 and an output distance of 2, than what is the input distance?
a)
10
b)
100
c)
1000
d)
10000
26.
How can you decrease the effort force needed to push a weight to the top of the ramp?
a)
cover the surface with carpet
b)
increase the length of the ramp
c)
increase the height of the ramp
d)
decrease the length of the ramp
27.
Barbie sits on one end of a see-saw and Ken sits on the other. Barbie goes up in the air and Ken stays down on the ground. In order for Ken to make Barbie move down, he should
a)
stand on the board
b)
push down on the board
c)
move towards the center
d)
move away from the center
28.
The amount by which a machine multiplies input force is known as the
a)
work.
b)
power.
c)
output force.
d)
mechanical advantage.
29.
Calculate the amount of work done if you use a 100N force to push a 50 kg box 5 m across the kitchen floor.
a)
250 J
b)
500 J
c)
5000 J
d)
50,000 J
30.
Jeff is a landscaping contractor and lifts a rock weighing 600 pounds by wedging a board under the rock. Jeff weighs 150 pounds and puts all of his weight on the lever. How much mechanical advantage did the lever provide to Jeff in lifting the rock?
a)
0
b)
2
c)
4
d)
8
31.
Using a lever, Joe is able to lift a 10,000 N car off of the ground with a force of 1000 N. What is the mechanical advantage of the lever?
a)
1
b)
10
c)
100
d)
1000
32.
This 2000 N weight is raised 1 meter by pulling 4 meters of rope. What force was required to pull the rope?
a)
500 N
b)
1000 N
c)
2000 N
d)
8000 N
33.
A sales clerk at a local hardware store sells you a hammer with a mechanical advantage of 10 when used to pry up nails. You are able to create a force of 60 N. Using the hammer, what would be the maximum force that could be generated to remove a nail?
a)
0.167 N
b)
6 N
c)
600 N
d)
6000 N
34.
This pulley
a)
has a mechanical advantage of 1 and does not make work easier.
b)
has mechanical advantage of 2 and reduces the force needed to lift an object.
c)
has a mechanical advantage of 2 and changes the direction of the applied force.
d)
has a mechanical advantage of 1 and changes the direction of the force needed to lift an object.
35.
Which unit do we measure force with?
a)
Newton
b)
Joule
c)
Meter
d)
Gallon
36.
Which unit do we measure work with?
a)
Newton
b)
Joule
c)
Meter
d)
Gallon
37.
To measure work, which of the following do we use?
a)
Work = Force x Weight
b)
Work = Height x DIstance
c)
Work = Force x Distance
d)
Work = 1 + 1
38.
What are the 4 parts of a lever?
a)
hands, shoulders, knees, toes
b)
arm, fulcrum, load, effort
c)
arm, elbow, thigh, foot
d)
sweat, blood, tears, effort
39.
Which of these simple machines is a lever?
a)
b)
c)
d)
40.
A lever and fulcrum are used to lift a fallen tree, which has a weight of 480 N. If the lever has a mechanical advantage of 5.5, what is the input force that will begin lifting the tree off the ground?
a)
5.5 N
b)
40.7 N
c)
87.3 N
d)
2640 N
41.
What is effort (input) force?
a)
the force one exerts on a machine
b)
the force which an effort force must overcome in order to do work on an object via a simple machine.
c)
the force the machine exerts on a object
d)
the output work times the input distance
42.
Mechanical advantage is a measure of how much a machine multiplies the input
a)
efficiency.
b)
force.
c)
power.
d)
work.
43.
Calculate the amount of work done if you use a 100N force to push a 50 kg box 5 m across the kitchen floor.
a)
250 J
b)
500 J
c)
5000 J
d)
50,000 J
44.
What is the primary mechanical advantage of using the simple machine seen in the image?
a)
You can apply a large force and have it penetrate over a very long distance.
b)
You can apply a long distance and have it convert into a very short distance.
c)
You can apply a short distance and have it multiplied to penetrate a large distance.
d)
You can apply a small force to penetrate something that normally requires a large force.
45.
A simple machine has an input force of 12 N and an output force of 4 N. What is its mechanical advantage?
a)
.33
b)
3
c)
8
d)
16
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