Energy 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 3

What is momentum?