In this section, we explore sound as a form of energy that relies on vibrations for its creation and transmission. Sound originates from vibrating objects, like clapping hands or struck tuning forks, and cannot exist in a vacuum. The principles of energy conservation apply, indicating that energy transforms rather than disappears. Through engaging activities—such as using a tuning fork to create vibrations in water and observing their effects—we learn how vibrations transfer energy. This hands-on approach reinforces key concepts such as the nature of sound waves, how various objects produce sound through vibration, and the importance of a medium for sound transmission.