Lever Mechanical Advantage Practice

Which of the following is a characteristic of a Class 3 lever?

• The effort is between the load and the fulcrum.

• The load is between the effort and the fulcrum.

• The fulcrum is between the effort and the load.

• The effort and the load are at the same point.

In a Class 2 lever, where is the load located?

• Between the effort and the fulcrum

• At the end opposite to the effort

• Next to the fulcrum on the same side as the effort

• At the same point as the fulcrum

What is the formula to calculate the mechanical advantage (MA) of a Class 1 lever?

If the mechanical advantage of a lever is 1, what does this indicate about the input and output forces?

• The input force is twice the output force.

• The output force is twice the input force.

• The input force is equal to the output force.

• It is impossible to determine without more information.

For a Class 3 lever, if the mechanical advantage is less than 1, which of the following statements is true?

• The output force is greater than the input force.

• The input force is greater than the output force.

• The input and output forces are equal.

• The lever is not functioning properly.

In a Class 2 lever, if the distance from the fulcrum to the load is 2 meters and the distance from the fulcrum to the effort is 4 meters, what is the ideal mechanical advantage?

• 0.5

• 1

• 2

• 4

If a Class 1 lever has an input (effort) arm of 4 meters and an output (resistance) arm of 2 meters, what is its ideal mechanical advantage?

• 0.5

• 1

• 2

• 4

How do you calculate the input (effort) force if the mechanical advantage is 5 and the output (resistance) force is 100N?

• 20N

• 500N

• 50N

• 5N

What is the resistance force if the effort force is 25N and the mechanical advantage of the lever is 3?

• 8.33N

• 75N

• 50N

• 100N

In a Class 1 lever, if the effort arm is 3 meters and the ideal mechanical advantage is 3, what is the length of the resistance arm?

• 1 meter

• 3 meters

• 6 meters

• 9 meters