- Create a load. The Science Mommy attached yarn to a paper cup and filled the cup with rocks.
- A block and tackle or combination pulley system uses both a fixed pulley and a moveable pulley. The string can either be anchored above the load or attached to the load. Then it's threaded through the pullies.
Questions to Explore:
How does one pulley work?
Does the size of the pulley matter?
Does the length of the string affect the pulley system?
What is the best way to use a pulley?
What is the most efficient pulley system?
Are there any disadvantages to using a pulley?
Where can you find examples of pulley systems in the "real world"?