WorksheetsSimple Machines
Total questions: 43
Worksheet time: 23mins
Name
Class
Date
1.
A flat sloping surface that connects lower and higher elevations. It makes raising objects easier.
a)
wedge
b)
screw
c)
lever
d)
inclined plane
2.
Two inclined planes placed back to back forms this simple machine
a)
pulley
b)
wedge
c)
lever
d)
wheel and axle
3.
An inclined plane wrapped around a rod forms this simple machine
a)
lever
b)
pulley
c)
screw
d)
wedge
4.
A simple machine that consists a rigid bar that pivot about a fixed point
a)
lever
b)
pulley
c)
wheel and axle
d)
fulcrum
5.
A seesaw is an example of a
a)
wedge
b)
lever
c)
inclined plane
d)
pulley
6.
An axe is an example of a
a)
pulley
b)
inclined plane
c)
screw
d)
wedge
7.
A device that has two or more simple machines working together
a)
fulcrum
b)
pulley
c)
compound (complex) machine
d)
motor
8.
Flagpole
a)
wedge
b)
pulley
c)
incline plane
d)
wheel and axle
9.
Stairs
a)
wedge
b)
pulley
c)
inclined plane
d)
wheel and axle
10.
Lightbulb
a)
wedge
b)
pulley
c)
incline plane
d)
screw
11.
Which is not a type of simple machine?
a)
spring
b)
screw
c)
pulley
d)
wedge
12.
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
d)
Wheel and Axel
13.
This device
a)
wedge
b)
lever
c)
incline plane
d)
wheel and axle
14.
What type of simple machine is this?
a)
wheel and axle
b)
gear
c)
lever
d)
inclined plane
15.
An inclined plane with one or two sloping sides is a
a)
pulley
b)
wedge
c)
lever
d)
fulcrum
16.
A bar that is free to pivot, or turn, about a fixed point.
a)
wheel and axle
b)
pulley
c)
fulcrum
d)
lever
17.
The amount of work done in a certain amount of time is known as
a)
work
b)
effort force
c)
resistance force
d)
power
18.
The force applied to a machine is the
a)
screw
b)
resistance force
c)
effort force
d)
work
19.
A measure of how much of the work put into a machine is changed into useful output work by the machine is known as
a)
efficiency
b)
effort force
c)
mechanical advantage
d)
resistance force
26.
The transfer of energy that occurs when a force makes an object move is known as
a)
effort
b)
potential
c)
kinetic
d)
work
21.
A device that makes doing work easier.
a)
compound machine
b)
wedge
c)
machine
d)
pulley
22.
The force applied by the machine to overcome resistance is called the
a)
effort force
b)
work
c)
mechanical advantage
d)
resistance force
23.
A sloping surface, such as a ramp that reduces the amount of force required to do work is called an
a)
inclined plane
b)
wedge
c)
screw
d)
pulley
28.
An inclined plane wrapped in a spiral around a cylindrical post is a
a)
ramp
b)
screw
c)
wheel and axle
d)
none of the above
25.
The fixed point on the lever is called
a)
load
b)
resistance
c)
bar
d)
fulcrum
26.
The transfer of energy that occurs when a force makes an object move is known as
a)
effort
b)
potential
c)
kinetic
d)
work
27.
A machine consisting of two wheels of different sizes that rotate together is a
a)
wheel and axle
b)
compound machine
c)
block and tackle
d)
pulley
28.
An inclined plane wrapped in a spiral around a cylindrical post is a
a)
ramp
b)
screw
c)
wheel and axle
d)
none of the above
30.
A grooved wheel with a rope, chain, or cable running along the groove is a
a)
pulley
b)
wheel and axle
c)
block and tackle
d)
movable pulley
30.
A grooved wheel with a rope, chain, or cable running along the groove is a
a)
pulley
b)
wheel and axle
c)
block and tackle
d)
movable pulley
31.
Machines make work easier by changing all of the following except:
a)
size of the force
b)
distance over which the force is
c)
direction the force is exerted
d)
time it takes to do work
32.
the force exerted on a machine
a)
input
b)
output
33.
the force that a machine exerts on an object
a)
input
b)
output
34.
MA = Output force /
a)
input force
b)
time
c)
distance
d)
force
35.
MA is measured in
a)
joules
b)
watts
c)
newtons
d)
meters
36.
True or False:
Machines transfer energy everytime they do work
Machines transfer energy everytime they do work
a)
true
b)
false
37.
If force increases, distance
a)
increases
b)
decreases
38.
if force decreases, distance
a)
increases
b)
decreases
39.
Most common form of energy loss is due to
a)
friction
b)
gravity
c)
mass
d)
size
40.
Pulling down on a rope to hoist a sail on a sailboat is an example of?
a)
reducing friction
b)
changing direction
c)
multiplying distance
d)
multiplying force
41.
A large rock and a long, thick board could be used to construct which simple machine?
a)
lever
b)
screw
c)
pulley
d)
wheel and axle
42.
Which of the following best describes why a person may not be able to lift up a full wheelbarrow by its handles?
a)
The effort force is not enough to overcome the resistance or the wheelbarrow weight
b)
The effort force is not enough to raise the fulcrum
c)
The wheelbarrow weight is not enough to overcome the effort force
d)
The wheelbarrow weight is not enough to rasie the fulcrum
43.
Scissors would be classified as which type of simple machine?
a)
lever
b)
inclined plane
c)
screw
d)
pulley
100 %
