What we call sound are in fact just pressurewaves propagating through the air. Our ears and brain detect and convert these pressure waves to electric signals which we interprete as being sound. The frequency of these waves determines the altitude of the tone, while the amplitude defines the volume of the sound.
When waves (eg pressure waves) pass through openings that have about the same magnitude (or less) than the wavelength of the incident wave, diffraction will occur. Once passed through the opening, diffraction will "generate" a phase difference between waves starting from the top and bottom of the opening. This phase difference leads to interference. Phenomena like diffraction and interference of waves will alter the caracteristics of the incident wave. For example, some frequencies can be cancelled out while others may become bigger. This is what happens in constructive and destructive interference. Different frequencies lead to different sounds because of the connection between frequency and sound.
noise
A wind
Sound is caused by a vibration of the leaves. Depending on the shape and stiffness of the leaves, the sound will sound different. Also the speed of the wind will affect the loudness and pitch of the sound.
peter patter is the sound made by rain.....
The sound made by a fan is called either Horrah or Yeay. The horrah is that made by a football fan and the yeah is that of a soccer fan.
Peal
noise
The sound of wind is commonly referred to as "whistling" or "howling."
A wind
a sound made by a beetle is called a nack
a sound made by a beetle is called a nack
The sound of the tree is the rusling noise made when the wind blows through the trees.
Sound is caused by a vibration of the leaves. Depending on the shape and stiffness of the leaves, the sound will sound different. Also the speed of the wind will affect the loudness and pitch of the sound.
Sound is caused by a vibration of the leaves. Depending on the shape and stiffness of the leaves, the sound will sound different. Also the speed of the wind will affect the loudness and pitch of the sound.
Bagpipe
The sound of a Lion is usually described as a 'roar'
The sound of a sparrow is called chip.