Work Power Mechanical Advantage

Mechanical advantage

Mechanical advantage

Simple machines are used to reduce the amount of force needed to do work. This can be calculated as mechanical advantage

Multiple Choice

A lever used to lift a heavy box has an effort arm of 4 meters and a load arm of 0.8 meters. What is the mechanical advantage of the lever?

• 1

• 5

• 2.5

• 10

Multiple Choice

A rake has an effort arm of 0.4 meters and a load arm of 1 meter. What is the mechanical advantage of the lever?

• 04

• 1

• 1.4

• 2

Multiple Choice

A lever used to lift a heavy box has an effort arm of 3 meters and a load arm of 2 meters. What is the mechanical advantage of the lever?

• 1.5

• 1

• 0.5

• 3

Multiple Choice

A lever has a load arm of 1 meters and a mechanical advantage of 6. What is the size of the effort arm.

• 2

• 4

• 6

• 8

Multiple Choice

A lever used to lift a heavy box has an effort arm of 2 meters and has a mechanical advantage of 4. What is the size of the load and a load arm ?

• 1.5

• 1

• 0.5

• 3

Multiple Choice

What is the mechanical advantage in the picture?

• 2

• 1

• 0.5

• 3

Multiple Choice

What is the mechanical advantage in the picture?

• 40

• 10

• 4

• 0.25