Book 22, Question 34

How Does a Wind-Up Toy Store Energy?

Name: How Does a Wind-Up Toy Store Energy?
Uploaded: 2026-10-05T11:40:46+00:00
Description: A wind-up toy walks, hops, or rolls without a battery. The secret is a twisted metal spring inside. Let's open it up! Wind-up clocks and music boxes have used springs for hundreds

A wind-up toy walks, hops, or rolls without a battery. The secret is a twisted metal spring inside. Let's open it up! Wind-up clocks and music boxes have used springs for hundreds of years.

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