Lesson 29 of 84 · Forces
Lesson⭐ 30 XP⚡ Spark LabSound and Vibrations
Sound and Vibrations.
🎯 Your mission
Understand the idea. Then look for it everywhere.
⚡ The twist
Speed isn't the same as force. Don't mix them up.
Mind = Blown
🔥 A bolt of lightning is 5 times hotter than the surface of the sun.
Make a hypothesis first
Guess: where does the energy go?
What You'll Learn
Sound is caused by vibrations. When you pluck a guitar string, it vibrates and makes sound!
Key Words
Tap a word to see its definition.
Steps
Look at the picture and read the labels.
Drop a feather and a coin at the same time from the same height. Which hits the ground first?
Draw a picture of what you observe.
Share your results with a partner.
Check Your Understanding
Question 1
1 of 3Which is 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
We'll pick an experiment that matches exactly how you're thinking right now.
Share this experiment
Send it to a parent who's looking for a 10-minute kitchen science win.
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