Advertisements
Advertisements
Question
How does sound travel in air?
Advertisements
Solution
Sound travels in air as a longitudinal wave through the vibration of air molecules. When a sound source vibrates, it creates compressions (high pressure) and rarefactions (low pressure) that propagate through the air. These pressure variations transfer sound energy from one molecule to another, allowing the wave to travel. The sound reaches our ears, causing the eardrum to vibrate, which is then processed by the brain as sound. Since sound needs a medium, it cannot travel in a vacuum.
APPEARS IN
RELATED QUESTIONS
Loudness is determined by the __________ of vibration.
If the amplitude of a wave is doubled, what will be the effect on its loudness?
Standing at a distance, how is it possible to detect the filling of bucket under a water tap by hearing the sound?
Name three characteristics of a musical sound.
If the amplitude of a wave is doubled, what will be the effect on its loudness?
Two waves of the same pitch have amplitudes in the ratio 1:3. What will be the ratio of loudness?
Two waves of the same pitch have amplitudes in the ratio 1:3. What will be the ratio of frequencies?
Explain the following and illustrate your answer by drawing appropriate diagram:
Pitch
Give a scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
