Lesson 60 of 84 · Forces and Motion
Experiment⭐ 30 XP⚡ Spark LabHow Batteries Work (Part 2)
Forces and Motion.
🎯 Your mission
Run the experiment. Find out what really happens.
⚡ The twist
The opposite of what you expect is often what happens.
Mind = Blown
🎢 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
- motion
- balanced
- gravity
Materials Needed
- ramps
- string
- weights
- tape
Safety First
- Do not look directly at the sun or bright lights.
- Clean up spills immediately to prevent slipping.
- Use materials only as directed in the experiment.
Steps
Review the background information on Forces and Motion before starting.
Set up a pendulum with string and a washer. Change the string length and count swings per minute for each. Graph your results.
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 causes an object to accelerate?
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
“Show me something at home that uses this kind of energy.”
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