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Simple Pulley
Children make simple pulleys using cardboard wheels and strings to lift weights upward, exploring mechanical advantage, force, and basic physics through hands-on play.
Materials :
- Cardboard
- Thread
- Sausage Sticks
- Masking Tape
- Double-Sided Tape
- Bottle Cap
- Scissors
Challenges:
- Make a stable device that can lift up objects from the base to a certain height. The device should use the concept of a pulley.
- Use multiple threads to lift the pulley up and observe how it affects the process compared to the previous one.
- You can easily level up the challenge using 2 or more levers to see how it works.
Questions to be asked:
- What is the difference in using a pulley and bare hands to lift objects?
- How can we improve the pulley to make it more efficient and reduce the time required?
- If we have to lift up a heavier object with less effort, what changes can be made?