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