The Science of Sound

Sound is a vibration that travels through air, water, or solids, creating waves of pressure changes. When an object vibrates, it pushes air molecules, causing them to compress and then expand, forming sound waves. These waves move outward until they reach our ears, where tiny structures called hair cells detect them and send signals to our brain, allowing us to perceive sounds. Pitch is determined by the frequency of these waves (how fast they vibrate), while volume is related to their amplitude (how strong they are). Sound plays a crucial role in communication, music, and our overall sensory experience.