Lesson 28 of 30 · Forces

Lesson⭐ 30 XP⚡ Spark Lab

Brakes Use Friction

🧪Lab Brief #28

Brakes Use Friction.

🎯 Your mission

Understand the idea. Then look for it everywhere.

⚡ The twist

Energy never disappears — it just hides somewhere else.

🤯

Mind = Blown

🎢 You feel weightless on a roller coaster because you and the seat are falling at the same speed.

🔮

Make a hypothesis first

Before you start: which will move faster, and why?

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

Tap a word to see its definition.

Steps

Step 1 — Read

Look at the new words. Can you say each one?

Step 2 — Observe

Draw a picture of what you observe.

Step 3 — Record

Share your results with a partner.

Check Your Understanding

Question 1

1 of 3

What does friction do?

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.

🏆

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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Ready?