Mechanical Advantage & Levers

Front

What is Mechanical Advantage (MA)?

Back

Mechanical Advantage (MA) is the ratio of the output force produced by a machine to the input force applied to it.

Front

How is work defined in physics?

Back

Work is defined as the transfer of energy or force acting over a distance.

Front

What is the formula for calculating work?

Back

W = Fd, where W is work, F is force, and d is distance.

Front

What type of lever is a see-saw?

Back

A see-saw is an example of a 1st class lever.

Front

If a force of 350 N moves an object 5 m, how much work is done?

Back

1750 J

Front

What is the formula for Mechanical Advantage?

Back

MA = Output Force / Input Force.

Front

If Jeff weighs 150 pounds and lifts a 600-pound rock, what is his Mechanical Advantage?

Back

4

Front

What is a 2nd class lever?

Back

A 2nd class lever has the load between the effort and the fulcrum.

Front

What is a 3rd class lever?

Back

A 3rd class lever has the effort between the load and the fulcrum.

Front

If a weight of 2000 N is raised 1 meter by pulling 4 meters of rope, what force is required?

Back

500 N