Lesson 28 of 84 · Forces

Lesson⭐ 30 XP⚡ Spark Lab

What Slows a Car Down?

🧪Lab Brief #28

What Slows a Car Down?.

🎯 Your mission

Master the concept. Use it tomorrow.

⚡ 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

Brakes on a bike use friction to slow down and stop. Press the brakes and friction does the work!

Key Words

weight
strong
force

Steps

Step 1 — Read

Read the introduction. What is this lesson about?

Step 2 — Do

Test a magnet on 10 objects around your house. Make a list of what sticks and what doesn't.

Step 3 — Observe

Look for something that changed. What is it?

Step 4 — Record

Circle the correct answer on your worksheet.

Check Your Understanding

Question 1

1 of 3

What kind of surface has the most friction?

How sure are you going to be?😐 maybe

🌍

Where you see this in real life

This is why airplanes can fly and why rockets reach space.

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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 card

Share this experiment

Send it to a parent who's looking for a 10-minute kitchen science win.

🖨️

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