What this lesson teaches
This activity teaches students about simple machines, focusing on how pulleys reduce effort.
Science in Action
Can you finish simple pulley demo in about 25 min?
Simple Pulley Demo
You will this activity teaches students about simple machines, focusing on how pulleys reduce effort.
Duration25 min
Age GroupAges 11–13
DifficultyIntermediate
SubjectScience
See how this hands-on lesson works
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What you need
- String or thread
- A small weight (like a bag of rice)
- A sturdy support (like a chair or table)
- Scissors
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How the activity runs
- Gather your materials: string, a small weight, and a sturdy support.
- Tie one end of the string to the weight securely.
- Loop the string over the support, making sure it can move freely.
The learning connection
Hands-on activities engage students and enhance understanding. By creating their own pulleys, students can see physics in action, making learning memorable.
Try it with your learner
1. Tie one end of the string to the small weight. 2. Thread the other end of the string through the pulley and secure it to the support stand. 3. Lift the weight by pulling down on the free end of the string. 4. Observe how much easier it is to lift the weight with the pulley. 5. Try lifting the weight without the pulley for comparison. 6. What did you notice?