Which wave property determines loudness and pitch, and what is the nature of sound waves?

Nature of Sound Waves

• Sound waves are mechanical waves because they need a medium (air, water, or solids) to travel.
• They are longitudinal waves, meaning the particles of the medium vibrate parallel to the direction of wave propagation.
• Sound cannot travel in a vacuum because there are no particles to transmit the vibrations.

Wave Properties Determining Loudness and Pitch

Note:

• Loudness is related to the amplitude of the sound wave.
• Pitch is related to the frequency of the sound wave.
• Sound waves are longitudinal mechanical waves.