Understanding Levers and Mechanical Advantage

Which of the following is NOT a type of simple machine?

• Pulley

• Motor

• Incline Plane

• Lever

What does 'Fr' typically represent in the context of simple machines?

• Distance of Resistance

• Distance of Effort

• Resistance Force

• Effort Force

In simple machines, what is the 'Effort Force'?

• The distance to the fulcrum

• The force applied by the machine

• The force applied by a human

• The weight of the object

What is the mechanical advantage when the input force is equal to the output force?

• Greater than 1

• Less than 1

• Equal to 1

• Zero

How is the Ideal Mechanical Advantage (IMA) calculated for levers?

• Fr / Fe

• De / Dr

• Fe / Fr

• Dr / De

In a first class lever, where is the fulcrum located?

• At the resistance force end

• At the effort force end

• In the middle of the lever

• At one end of the lever

What is the IMA of a first class lever when the fulcrum is exactly in the middle?

• Zero

• Equal to 1

• Less than 1

• Greater than 1

In a second class lever, where is the resistance force located?

• At the effort force end

• In the middle of the lever

• At one end of the lever

• At the fulcrum

What is the IMA of a second class lever?

• Zero

• Equal to 1

• Always less than 1

• Always greater than 1

In a third class lever, which force is located on the inside?

• Resistance Force

• Effort Force

• Both forces

• Neither force