WorksheetsSimple and Complex Machines
Total questions: 15
Worksheet time: 12mins
Name
Class
Date
1.
The fixed point on the lever is called
a)
load
b)
resistance
c)
bar
d)
fulcrum
2.
When force is used to move an object across a distance, this is called...
a)
effort
b)
power
c)
energy
d)
work
3.
What do you call a machine made up of two or more simple machines?
a)
complicated machine
b)
compound machine
c)
comprehensive machine
d)
constructed machine
4.
How can the lever be balanced?
a)
add weight to the right side
b)
move the fulcrum right
c)
move the heavier weight back
5.
A push or pull is a
a)
load
b)
fulcrum
c)
force
d)
work
6.
An object being lifted or moved is a
a)
load
b)
fulcrum
c)
force
d)
work
7.
An example of a lever is
a)
doorstop
b)
drill
c)
staircase
d)
hammer
8.
Which of the following is true for the picture?
a)
elephant is the fulcrum, mouse is the effort, triangle is the load
b)
mouse is the fulcrum, triangle is the effort, elephant is the load
c)
triangle is the fulcrum, mouse is the effort, elephant is the load
9.
Which is a simple machine?
a)
baseball bat
b)
bicycle
c)
can opener
d)
car
10.
Which simple machine would most likely increase the distance and reduce the force needed for a rolling cart to be moved up three steps?
a)
lever
b)
screw
c)
pulley
d)
inclined plane
11.
Which statement correctly explains a compound machine?
a)
A compound machine is made up of one or more simple machines
b)
A compound machine is made up of two or more simple machines.
c)
A screw is a type of inclined plane.
d)
None of the above
12.
A log splitting machine was invented to split logs quickly. A motor powers a metal piece that is pushed through the middle of a log. The metal piece used to split a log is an example of what simple machine?
a)
wedge
b)
pulley
c)
screw
d)
lever
13.
The illustration shows a person removing the lid from a crate with a crowbar. Which statement describes the force on the crowbar and the motion of the lid?
a)
As the crowbar is pushed down, the lid moves down.
b)
As the crowbar is pushed down, the lid moves up.
c)
As the crowbar is pulled up, the lid moves down.
d)
As the crowbar is pulled out, the lid moves up.
14.
Which of the following is a requirement for work to be done?
a)
Force is exerted.
b)
Object is carried.
c)
Force moves an object.
d)
Machine is used.
15.
The picture shows a student using a pulley system to raise a flag. Which statement correctly describes the function of this system?
a)
The more force used to pull the string, the more string will be needed to raise the flag.
b)
The more force used to pull the string, the faster the flag will move up the flagpole.
c)
The less force used to pull the string, the greater the distance the flag will move.
d)
The less force used to pull the string, the longer the flag will remain raised.
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