76
Lesson 76 of 84 · Motion and Forces
ExperimentEnergy Transformations (Part 3)
What You'll Learn
Renewable energy sources like solar, wind, and hydroelectric power can be replenished naturally. Nonrenewable sources like fossil fuels take millions of years to form.
Key Words
- energy
- kinetic
- potential
Materials Needed
- marbles
- paper clips
- rubber bands
- blocks
Safety First
- Be careful with scissors — ask an adult for help if needed.
- Do not look directly at the sun or bright lights.
- Clean up spills immediately to prevent slipping.
Steps
Step 1 — Read
Review the background information on Motion and Forces before starting.
Step 2 — Do
Build a simple motor using a battery, magnet, wire, and paper clip supports. Observe how electromagnetic forces create rotation.
Step 3 — Observe
Note any unexpected results and think about why they happened.
Step 4 — Record
Share your findings with the class or a partner and discuss what you learned.
Check Your Understanding
Question 1
1 of 3What is momentum?