Lesson 62 of 84 · Energy
Simulation⭐ 30 XP⚡ Spark LabMechanical Advantage (Part 2)
Mechanical Advantage (Part 2).
🎯 Your mission
Push the limits. See what changes.
⚡ 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
Mechanical advantage tells how much a machine multiplies the force you put in. A machine with a mechanical advantage of four lets you lift a load using only one-fourth of the force, but you must move it a greater distance.
Key Words
Tap a word to see its definition.
Steps
Read about Energy and write down three key facts.
Create a Rube Goldberg machine with at least 5 steps that demonstrates energy transfer from one form to another.
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 3Which is NOT a simple machine?
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.
Checkout complete lesson on Energy for 7th Grade
Get the full Energy track as a printable PDF — all lessons, worksheets, and answer keys.