Continue with Microsoft TeamsMake a Simple Pulley
In this experiment, you will find out if a pulley makes it easier to lift a load. A broom handle will act as the pulley.
What You Need
- A plastic jug with a screw-on lid, half-full of water
- A broom handle
- A piece of thin rope or very strong string, 100 cm long
- Two chairs with seats the same height
- Duct tape
- A 30 cm ruler
What You Do
- Tie the rope to the handle of the jug.
- Place the two chairs 50 cm apart.
- Use the duct tape to attach the broom handle to the chair seats.
- Have a partner hold a ruler on the floor beside the jug. Stand the ruler up, as shown. Pull the rope to lift the jug 30 cm.
- Put the jug under the broom handle and place the rope over the broom handle as shown. Pull the rope down to lift the jug 30 cm.
- Decide which method of lifting the jug was easier.
Show What You Know!
Complete some questions about the reading selection by clicking “Begin Questions” below.
