WorksheetsSimple Machines Self Check
Total questions: 24
Worksheet time: 26mins
Name
Class
Date
1.
Which class of lever is represented in the picture?
a)
1st class lever
b)
2nd class lever
c)
3rd class lever
d)
None of the above
2.
Which class of lever is represented in the picture?
a)
1st class lever
b)
2nd class lever
c)
3rd class lever
d)
None of the above
3.
Which class of lever is represented in the picture?
a)
1st class lever
b)
2nd class lever
c)
3rd class lever
d)
None of the above
4.
What type of pulley is shown in the picture?
a)
Fixed
b)
Moveable
c)
Block & Tackle
d)
Compound
5.
What type of pulley is shown in the picture?
a)
Fixed
b)
Moveable
c)
Block & Tackle
d)
Compound
6.
What type of pulley is shown in the picture?
a)
Fixed
b)
Moveable
c)
Block & Tackle
d)
Compound
7.
The construction worker is using a pulley system with an IMA of 2 to move a 200lb stack of boxes. How much effort force does he need to exert in order to move the boxes?
a)
200 lb
b)
400 lb
c)
100 lb
d)
There isn't enough information to solve the problem.
8.
Identify this simple machine
a)
Lever
b)
Wheel & Axle
c)
Inclined Plane
d)
Screw
9.
The device used to raise a flag up a flag pole is an example of a
a)
wheel and axle
b)
lever
c)
inclined plane
d)
pulley
10.
An inclined plane wrapped around a rod forms this simple machine
a)
lever
b)
pulley
c)
screw
d)
wedge
11.
A simple machine that consists of a rigid bar that pivots about a fixed point is called a
a)
lever
b)
pulley
c)
wheel and axle
d)
fulcrum
12.
The blade of an axe is an example of a
a)
pulley
b)
inclined plane
c)
screw
d)
wedge
13.
A seesaw is an example of a
a)
wedge
b)
lever
c)
inclined plane
d)
pulley
14.
Stairs are an example of which simple machine?
a)
wedge
b)
pulley
c)
inclined plane
d)
wheel and axle
15.
The bottom (metal) part of a lightbulb is which type of simple machine?
a)
wedge
b)
pulley
c)
incline plane
d)
screw
16.
What type of simple machine is found on the cap of a pickle jar?
a)
lever
b)
inclined plane
c)
pulley
d)
screw
17.
What type of simple machine is a door knob?
a)
wheel and axle
b)
gear
c)
lever
d)
inclined plane
18.
The pivot point on the lever is called
a)
load
b)
resistance
c)
bar
d)
fulcrum
19.
What is the ideal mechanical advantage of this pulley system?
a)
2
b)
3
c)
4
d)
5
20.
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
21.
How much work is produced when 200 N is used to move a car 5 m?
a)
40 J
b)
205 J
c)
1000J
d)
195 J
22.
True or False: No machine is 100 % efficient.
a)
True
b)
False
23.
What is the equation for work?
a)
F x D
b)
F = M x A
c)
y = mx + b
d)
E = MC2
24.
What is effort force?
a)
3 times the output force
b)
a push or a pull
c)
80N
d)
the amount of force you exert on a machine
100 %
