62

Lesson 62 of 84 ยท Energy

Simulationโญ 30 XPโšก Spark Lab

Wedges and Screws in Everyday Life (Part 2)

๐ŸงชLab Brief #62

Wedges and Screws in Everyday Life (Part 2).

๐ŸŽฏ Your mission

Push the limits. See what changes.

โšก The twist

Energy never disappears โ€” it just hides somewhere else.

๐Ÿคฏ

Mind = Blown

๐ŸŽข You feel weightless on a roller coaster because you and the seat are falling at the same speed.

๐Ÿ”ฎ

Make a hypothesis first

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

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

Step 1 โ€” Read

Read about Energy and write down three key facts.

Step 2 โ€” Do

Create a Rube Goldberg machine with at least 5 steps that demonstrates energy transfer from one form to another.

Step 3 โ€” Observe

Use your senses (except taste) to describe what you notice.

Step 4 โ€” Record

Write a summary of your findings in 3-5 sentences.

Check Your Understanding

Question 1

1 of 3

Which is NOT a simple machine?

๐ŸŒ

Where you see this in real life

You use this every time you flip a light switch, ride a bike, or kick a ball.

๐Ÿ†

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.

๐Ÿ‘จโ€๐Ÿ‘ฉโ€๐Ÿ‘ง

For the dinner table

โ€œShow me something at home that uses this kind of energy.โ€

๐ŸŽฏ

Next Smart Experiment

We'll pick an experiment that matches exactly how you're thinking right now.

๐ŸŒฑShare card

Share this experiment

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

๐Ÿ–จ๏ธ

Checkout complete lesson on Energy for 7th Grade

Get the full Energy track as a printable PDF โ€” all lessons, worksheets, and answer keys.

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Wedges and Screws in Everyday Life (Part 2) โ€” Energy | 7th Grade Science | LittleActivity | LittleActivity