🔊 Sound Waves: The Physics of Hearing and Communication Sound is a form of energy that travels through a medium such as air, water, or solids. We hear sound when these vibrations reach our ears and are converted into signals that the brain can understand. 🌊 How Sound Waves Work When an object vibrates, it causes nearby particles to vibrate. These vibrations travel outward as sound waves. Sound waves are usually longitudinal waves, meaning the particles move back and forth in the same direction the wave travels. 👂 How We Hear Sound waves enter the ear canal. They make the eardrum vibrate. Tiny bones in the middle ear amplify the vibrations. The cochlea converts the vibrations into electrical signals. The brain interprets these signals as sound. 📡 Sound and Communication Humans use sound for speaking and communicating. Technology also uses sound waves in telephones, microphones, speakers, ultrasound, sonar, and other communication systems. 🔑 Key Properties Frequency → determines how high or low a sound is. Amplitude → relates to how loud the sound is. Wavelength → the distance between corresponding points on a wave. Speed → how quickly sound travels through a medium. Conclusion: Sound waves connect physics with everyday life. From hearing a friend's voice to using technology for communication, vibrations and waves make it possible for us to share and receive information. Day:-174 rollno:-006 foundation level 📖 Story Post