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WorksheetsSimple Machines, MA, KE and PE
Total questions: 29
Worksheet time: 2hrs 31mins
Name
Class
Date
1.
Which is not a type of simple machine?
a)
spring
b)
screw
c)
pulley
d)
wedge
2.
Flagpole
a)
wedge
b)
pulley
c)
incline plane
d)
wheel and axle
3.
Stairs
a)
wedge
b)
pulley
c)
inclined plane
d)
wheel and axle
4.
Lightbulb
a)
wedge
b)
pulley
c)
incline plane
d)
screw
5.
How does a movable pulley make lifting objects easier?
a)
The amount of force needed is doubled
b)
the amount of force needed is increased
c)
the amount of force needed is reduced
d)
the amount of force needed stays the same
6.
Where should the fulcrum be placed in order for the student to use the least amount of effort possible?
a)
point A
b)
point B
c)
point C
d)
point D
7.
If you use a crowbar to get the lid off of a bucket, what simple machine are you using?
a)
Inclined Plane
b)
Pulley
c)
Wheel and Axle
d)
Lever
8.
Stored energy that an object has due to its position or chemical composition is...
a)
Potential
b)
Kinetic
c)
Mechanical
9.
What type of energy is in this picture?
a)
Kinetic
b)
Potential
c)
Electromagnetic
10.
1/2 mv2
a)
KE
b)
PE
c)
Work
d)
Power
11.
MGH
a)
KE
b)
PE
c)
Work
d)
Power
12.
At which point is potential energy greatest
a)
W
b)
X
c)
Y
d)
Z
13.
What type of simple machine is found on the cap of a pickle jar?
a)
lever
b)
inclined plane
c)
pulley
d)
screw
14.
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
15.
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
16.
A stretched rubber band has _______ energy.
a)
rubber
b)
kinetic
c)
potential
d)
stretched
17.
What is kinetic energy?
a)
the energy of position or shap
b)
ability to do work
c)
the energy of motion
d)
a dog
18.
How do you find mechanical energy?
a)
weight x hieght
b)
potential + kinetic
c)
energy + weight
d)
none of these
19.
Consists of two circular objects; a central shaft and a wheel.
a)
wheel and axle
b)
screw
c)
pulley
20.
A _____ is a fixed bar that us free to move around a fixed point known as a fulcrum.
a)
pulley
b)
inclined plane
c)
lever
21.
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
22.
This picture shows a screw with a pointed tip. This screw is a machine consisting of
a)
a pulley and a wedge
b)
a pulley and a lever
c)
an inclined plane and a wedge
d)
an inclined plane and a lever
23.
What type of simple machine is the bottle opener?
a)
lever
b)
pulley
c)
wheel and axle
d)
inclined plane
24.
What kind of energy is in a stretched rubber band?
a)
Potential
b)
Kinetic
25.
While a boulder is on the top of a hill it has what type of energy?
a)
Mechanical
b)
Kinetic
c)
Potential
d)
Reactive
26.
The Potential Energy of a 20-kg mass at a height of 2 meters
a)
392 J
b)
390 J
c)
400 J
d)
410 J
27.
Find the Kinetic Energy of a 20 kg mass moving at a speed of 2 m/sec
a)
40 J
b)
40 m/sec
c)
40 kg
d)
50 J
28.
What does "g" stand for?
a)
Gravity
b)
The Acceleration due to gravity
c)
How much force gravity has
29.
If a girl has a mass of 20 kg, and is at a height of 30 m. What is her potential energy?
a)
-490 J
b)
-5880 J
c)
-643 J
d)
-19 J
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