Levers / Wheel and Axle Quiz Review

How many classes of levers are there?

• 3

• 6

• 2

Which class of lever can have the Mechanical Advantage less than, equal to , OR greater than 1?

• Third Class

• Second Class

• First Class

• None

Which class of lever has its Mechanical Advantage ALWAYS greater than 1?

• Third Class

• Second Class

• First Class

• None

Which class of lever has its Mechanical Advantage ALWAYS less than 1?

• Third Class

• Second Class

• First Class

• None

First class Levers have the two forces in the same direction or opposite direction?

• Same direction

• Opposite direction

Second class Levers have the two forces in the same direction or opposite direction?

• Same direction

• Opposite direction

Third class Levers have the two forces in the same direction or opposite direction?

• Same direction

• Opposite direction

Where is the fulcrum for a first class lever?

• On the left

• On the right

• Either end of the lever, it doesn't matter which side

• Somewhere in between the effort force and resistance force

Where is the fulcrum for a second class lever?

• On the left

• On the right

• Either end of the lever, it doesn't matter which side

• Somewhere in between the effort force and resistance force

Where is the fulcrum for a third class lever?

• On the left

• On the right

• Either end of the lever, it doesn't matter which side

• Somewhere in between the effort force and resistance force