As ice is changed to water, energy is

Some singers are able to shatter a crystal chandelier with their voice, which illustrates

The temperature at which water freezes is the same as the temperature at which

Water can change phase to become ice by

The purpose of a voltage source is to provide an electrical

“Sympathetic vibrations” refers to

An iron nail is attracted

Strings that have more mass on a musical instrument than others produce notes of

Double the frequency of sound and you also double its

The source of all wave motion is