Lever and pulley

Front

What is a lever?

Back

A simple machine that consists of a rigid bar that pivots around a fixed point called the fulcrum.

Front

What is a pulley?

Back

A simple machine that uses a grooved rope to move a load.

Front

What are the main parts of a pulley system?

Back

Rope, pulley, and load.

Front

What is a class II lever?

Back

A lever where the load is located between the fulcrum and the effort.

Front

Give an example of a class II lever.

Back

A wheelbarrow.

Front

What is the fulcrum in a lever system?

Back

The fixed point around which the lever pivots.

Front

What is effort in the context of levers?

Back

The force applied to move the load.

Front

What is a load in a lever system?

Back

The object that is being moved or lifted.

Front

What is the difference between a class I lever and a class II lever?

Back

In a class I lever, the fulcrum is between the load and effort; in a class II lever, the load is between the fulcrum and effort.

Front

What is an example of a pulley in everyday life?

Back

A flag pole.