Energy from Moving Things

What You'll Learn

A wedge is a simple machine shaped like a triangle. A doorstop is a wedge!

Work in a well-ventilated area when using vinegar or other strong-smelling substances.
Dispose of materials properly after the experiment.

Step 1 — Read

Read about Forces with a partner or grown-up.

Step 2 — Do

Push a toy car across the carpet, then across a smooth floor. Measure how far it goes each time.

Step 3 — Observe

Watch carefully. What happens?

Step 4 — Record

Draw and write about what you learned.

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Which simple machine is a ramp?