Lesson 5 of 84 ยท Forces
Experimentโญ 30 XPโก Spark LabGravity Pulls Things Down
Gravity Pulls Things Down.
๐ฏ Your mission
Set it up. Test it. Be amazed.
โก The twist
Speed isn't the same as force. Don't mix them up.
Mind = Blown
๐ฅ 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
Gravity is a force that pulls everything toward the ground. It is why you come back down when you jump!
Key Words
- gravity
- magnet
- attract
Materials Needed
- spring scale
- stopwatch
- pencils
Safety First
- Do not mix unknown chemicals together.
- Tie back long hair before starting the experiment.
Steps
Talk about what you already know about Forces.
Build a simple lever with a ruler and pencil. Try lifting objects on one end by pushing the other.
Compare what happened to what you predicted.
Tell the class one thing you learned today.
Check Your Understanding
Question 1
1 of 3Why do things fall when you drop them?
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
โShow me something at home that uses this kind of energy.โ
Next Smart Experiment
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