Work and Simple Machines Modified

Front

What is the force you exert on an object called?

Back

Input or effort force.

Front

What class of lever has the load between the fulcrum and the effort?

Back

Second class lever.

Front

What type of lever has the fulcrum in the middle?

Back

First class lever.

Front

Do simple machines eliminate work?

Back

False. Simple machines do not eliminate work; they make it easier.

Front

What type of lever has the effort between the load and the fulcrum?

Back

Third class lever.

Front

What is a lever?

Back

A simple machine that consists of a rigid bar that pivots around a fulcrum.

Front

What is a fulcrum?

Back

The point where a lever pivots.

Front

What is mechanical advantage?

Back

The ratio of the output force to the input force in a machine.

Front

What is the purpose of simple machines?

Back

To make work easier by allowing us to apply less force over a greater distance.

Front

What is an example of a first class lever?

Back

A seesaw.