Sound is a type of energy that is created by vibrations and travels through a medium, such as air or water, and can be detected by the human ear.
Sound is produced when an object vibrates, causing the surrounding air particles to vibrate and create sound waves.
The properties of sound include frequency, wavelength, amplitude, and speed. Frequency refers to the number of vibrations per second, wavelength is the distance between two consecutive peaks of a sound wave, amplitude is the intensity or loudness of a sound, and speed is how fast sound travels through a medium.
No, sound cannot travel through a vacuum because it needs a medium, such as air, to travel through.
The human ear detects sound through the outer ear, which captures sound waves and directs them to the ear canal. The sound waves then travel to the eardrum and cause it to vibrate. These vibrations are then transmitted to the inner ear where they are converted into electrical signals and sent to the brain for processing.