Lesson 31 of 84 · Motion and Forces
Experiment⭐ 30 XP⚡ Spark LabWedges and Screws in Everyday Life
Motion and Forces.
🎯 Your mission
Run the experiment. Find out what really happens.
⚡ The twist
The opposite of what you expect is often what happens.
Mind = Blown
🎢 You feel weightless on a roller coaster because you and the seat are falling at the same speed.
Make a hypothesis first
Predict: what happens if you double the force?
What You'll Learn
A force is a push or pull that can change an object's motion, shape, or direction. Forces are measured in Newtons and can act through contact or at a distance.
Key Words
- wheel and axle
- gravity
- friction
Materials Needed
- rubber bands
- blocks
- spring scale
- stopwatch
- pencils
- toy cars
Safety First
- Do not taste any materials.
- Wear safety goggles when mixing liquids.
Steps
Read about Motion and Forces and write down three key facts.
Create a Rube Goldberg machine with at least 5 steps that demonstrates energy transfer from one form to another.
Use your senses (except taste) to describe what you notice.
Write a summary of your findings in 3-5 sentences.
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.”
Next Smart Experiment
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