Levers and Mechanical Advantage

How many classifications of levers are there?

• 3

• 2

• 5

• 4

In which position will the fulcrum be in relation to the effort and load in a first class lever system?

• On the left

• In the middle

• On the right

What term defines the use of a lever to overcome a large load with relatively little effort?

• Mechanical disadvantage

• Mechanical advantage

• Resistance arm

Which class lever is this?

• First

• Second

• Third

Which lever will always have a mechanical disadvantage?

• First

• Second

• Third

What lever type is this?

• 1st class lever

• 2nd class lever

• 3rd class lever

• Not a lever

Calculate the mechanical advantage in this image

• 3N

• 40N

• 20N

• 10N

What lever type is this?

• 1st class lever

• 2nd class lever

• 3rd class lever

• Not a lever

Calculate the mechanical advantage in the image

• 80N

• 40N

• 20N

• 3N

The arrow points to...

• The effort

• The resistance

• The fulcrum

• The output force