Lesson 62 of 84 ยท Forces
Lessonโญ 30 XPโก Spark LabWedges and Screws in Everyday Life (Part 2)
Wedges and Screws in Everyday Life (Part 2).
๐ฏ Your mission
Learn the rule. Then catch nature using it.
โก The twist
Speed isn't the same as force. Don't mix them up.
Mind = Blown
โก Static electricity is the same physics as lightning, just smaller.
Make a hypothesis first
Guess: where does the energy go?
What You'll Learn
A force is a push or pull that can change an object's motion, shape, or direction. Forces are measured in Newtons and can act through contact or at a distance.
Key Words
- wheel and axle
- gravity
- friction
Steps
Read about Forces 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
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
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.
Checkout complete lesson on Forces for 7th Grade
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