WorksheetsLevers
Total questions: 18
Worksheet time: 9mins
Name
Class
Date
1.
A see saw is an example of a:
a)
1st class lever
b)
2nd class lever
c)
3rd class lever
2.
This is the fixed point that a lever pivots around
a)
load
b)
scale
c)
fulcrum
d)
effort
3.
The nutcracker is the example of .......................
a)
First Class of lever
b)
Second Class of lever
c)
Third Class of lever
d)
Fourth Class of lever
4.
What is definition of the effort?
a)
The fixed point or pivot
b)
The point where the force is applied
c)
The point where the weight/resistance is coming from
5.
The diagram shows a crowbar used to lift an object. What parameters should be change to lift heavy object with small effort applied?
a)
Decrease distance r1
b)
Increase distance r1
c)
Increase distance r2
d)
r1 must be same as r2
6.
1. A _________is a simple machine with a fulcrum and a rigid bar.
a)
Pivot
b)
Lever
c)
Wedge
7.
6. What kind of lever is this?
a)
First Class Lever
b)
Second Class Lever
c)
Third Class Lever
8.
How many types of levers are there?
a)
1
b)
2
c)
3
d)
4
9.
The resistance force and the effort force are on the opposite sides of the fulcrum in this.
a)
First class
b)
Second Class
c)
Third Class
d)
Fourth Class
10.
If you want to decrease the effort force when using a lever, where will you move the fulcrum?
a)
Closer to the object you want to move
b)
Farther away from the object you want to move
c)
You don't move the fulcrum, you move the effort force
d)
None of these answers
11.
When using a lever, your work is made easier. However, what does the simple machine make you do in order to make this work easier?
a)
Move the resistance arm a greater distance
b)
Move the effort arm a greater distance
c)
Move the fulcrum to the middle
12.
For a lever to be a first class lever the fulcrum needs to be ..
a)
between the load and the effort
b)
on one side and the load and effort on the other side
c)
on the same side as the load arm.
13.
Which body part acts as the fulcrums of levers?
a)
lungs
b)
kidneys
c)
joints
d)
brain
14.
9. Which type of lever would be in this image?
a)
First Class Lever
b)
Second Class Lever
c)
Third Class Lever
15.
A second-class lever is one that has its elements in this order:
a)
Fulcrum-effort-load
b)
Effort-fulcrum-load
c)
Fulcrum-load-effort
16.
Which type of lever is being demonstrated in the image
a)
1st class
b)
2nd class
c)
3rd class
d)
4th class
17.
Which body part acts as the fulcrums of levers?
a)
lungs
b)
kidneys
c)
joints
d)
brain
18.
This baseball pitcher is demonstrating which type of lever at the shoulder?
a)
1st class
b)
2nd class
c)
3rd class
d)
4th class
100 %
