Lesson 65 of 84 · Motion and Forces
Lesson⭐ 30 XP⚡ Spark LabNewton's Third Law: Action and Reaction (Part 3)
Motion and Forces.
🎯 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
Newton's third law states that for every action there is an equal and opposite reaction. When you push against a wall, the wall pushes back on you with the same force.
Key Words
- friction
- inertia
- momentum
Steps
Read the introduction and identify the main idea of this lesson.
Build an electromagnet by wrapping insulated wire around a nail and connecting it to a battery. Test how many paper clips it can pick up. Try adding more wire coils.
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 3What is gravity?
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
“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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