Lesson 68 of 84 · Magnets
Experiment⭐ 30 XP⚡ Spark LabSimple Machines: The Lever (Part 3)
Simple Machines: The Lever (Part 3).
🎯 Your mission
Predict it first. Then prove yourself right (or wrong).
⚡ The twist
The opposite of what you expect is often what happens.
Mind = Blown
🔥 A bolt of lightning is 5 times hotter than the surface of the sun.
Make a hypothesis first
Predict: what happens if you double the force?
What You'll Learn
Simple machines make work easier by changing the direction or amount of force needed. The six simple machines are lever, pulley, inclined plane, wedge, screw, and wheel and axle.
Key Words
- speed
- direction
Materials Needed
- weights
- tape
- ruler
- cardboard
- marbles
Safety First
- Do not taste any materials.
- Wear safety goggles when mixing liquids.
Steps
Read about Magnets and write down three key facts.
Build a simple motor using a battery, magnet, wire, and paper clip supports. Observe how electromagnetic forces create rotation.
Compare the before and after states.
Write your conclusion: did the results match your hypothesis? What would you change next time?
Check Your Understanding
Question 1
1 of 3Which is NOT a simple machine?
Where you see this in real life
This is why airplanes can fly and why rockets reach space.
Stretch Challenge
Try this in real life this week.
This week, find one thing in your house that turns one kind of energy into another.
For the dinner table
“Show me something at home that uses this kind of energy.”
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