Lesson 53 of 84 ยท Forces
Experimentโญ 30 XPโก Spark LabPush and Pull Forces (Part 2)
Push and Pull Forces (Part 2).
๐ฏ Your mission
Run the experiment. Find out what really happens.
โก The twist
The opposite of what you expect is often what happens.
Mind = Blown
๐ข You feel weightless on a roller coaster because you and the seat are falling at the same speed.
Make a hypothesis first
Predict: what happens if you double the force?
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
- inclined plane
- wedge
- magnet
Materials Needed
- spring scale
- stopwatch
- pencils
- toy cars
- ramps
Safety First
- Clean up spills immediately to prevent slipping.
- Use materials only as directed in the experiment.
- Keep small objects away from young children.
Steps
Look at the vocabulary words and write a definition for each in your own words.
Build a simple motor using a battery, magnet, wire, and paper clip supports. Observe how electromagnetic forces create rotation.
Observe what happens and describe it in detail.
Record your observations in your science journal with measurements and descriptions.
Check Your Understanding
Question 1
1 of 3What is an electromagnet?
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
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 4th Grade
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