Lesson 42 of 84 ยท Forces
Simulationโญ 30 XPโก Spark LabStop and Go! (Part 2)
Stop and Go! (Part 2).
๐ฏ Your mission
Run the sim. Spot the pattern.
โก The twist
The opposite of what you expect is often what happens.
Mind = Blown
๐ฅ 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
When you stop pedaling a bike, it slowly stops because of friction.
Key Words
- start
- heavy
Steps
Talk about Forces with a grown-up. What do you already know?
Try pulling a wagon with one hand, then two hands. Which is easier?
What happened? Tell a grown-up what you noticed.
Tell a grown-up your favorite part of the activity.
Check Your Understanding
Question 1
1 of 3Does a ball bounce?
Where you see this in real life
You use this every time you flip a light switch, ride a bike, or kick a ball.
Stretch Challenge
Try this in real life this week.
Time how long a small ball rolls down something, then change the slope and try again.
For the dinner table
โShow me something at home that uses this kind of energy.โ
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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