Скачать или смотреть Exploring the Science of Sound : Loudness,Pitch,Supersonic Boom

Loudness and pitch are two fundamental characteristics of sound, determined by the physical properties of sound waves. Loudness, which is how loud a sound seems, is related to the amplitude of the sound wave. Pitch, which refers to the perceived highness or lowness of a sound, is related to the frequency of the sound wave

LOUDNESS (Amplitude):
The amplitude of a sound wave is the distance between the crest (peak) or trough (bottom) of the wave and its resting position.
A larger amplitude means a louder sound, as more energy is being carried by the wave.
Loudness is measured in decibels (dB), and the intensity of the sound is what our ears perceive as loudness.


PITCH (Frequency):
The frequency of a sound wave is the number of wave cycles that pass a point in one second, measured in Hertz (Hz).
Higher frequency sound waves have a higher pitch, while lower frequency sound waves have a lower pitch.
Humans can typically hear sound waves between 20 Hz and 20,000 Hz

SONIC BOOM SOUND
A sonic boom is a loud, explosive sound created when an object, like an aircraft, moves faster than the speed of sound (approximately 761 mph at sea level). This happens because the pressure waves the object creates are compressed together, forming a shock wave that is heard as a sonic boom.

More Detailed EXPLAINATIONS :

Supersonic Speed:
When an object travels faster than sound, it creates continuous pressure waves that build up and converge.

Shock Waves:
These converging pressure waves form a shock wave, which is essentially a "wall" of compressed air moving faster than sound.

Sonic Boom:
The sudden release of pressure from the shock wave as it passes by creates a loud, thunderous noise, which is the sonic boom.

Visual Analogy:
Imagine throwing a stone into a pond. The ripples created by the stone spread outward. When you move the stone faster than the ripples, the ripples pile up, forming a wave-like shock. This is similar to how a sonic boom is formed.

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