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Why does cupping your hand around your ear make a sound louder?
BleedingRavenclaw
catches more sound. your ears are already on an angle, so cupping your hand enhances that angles/amount of sound captured
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∙ 14y ago
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Is the loudness of a sound wave is related to its amplitude?
From a wave model perspective, the intensity of a sound (i.e. its "loudness") is dependent on the amount of energy that the sound wave carries. The energy of the wave is proportional to the amplitude, how far the wave goes up and down. Thus, the intensity of voice is dependent on how much force you applied to the air passing through your vocal cords, thus displacing them more (thus a bigger amplitude). Try it, put your hand to your throat and feel which sound is more noticeable (when you whisper, or when you shout).
How do you reverse a Hand Held Fans?
Turn it around
Does a djembe drum make a high or low pitch sound?
it makes both... on the edges if tumed right you can have a crisp sharp sound, but with your hand cuped and hitting the middle you will have the djembes deep bass rumble:)
Light and sound waves have many similar properties however light waves are what while sound waves are what?
Light waves are eletromagnetic waves and sound waves are mechanical waves. Additionally, a light wave is a transverse wave that does not require a medium through which to travel. Sound waves, on the other hand, are longitudinal waves where the source transfers the mechanical energy of the sound wave into the medium so it can travel.
How do you use a charcoal pencil?
move your hand around. i might just draw
How loud is a hand grenade?
Depends on the type of grenade, and how far away- but at 30 meters, it is as loud as anything you have ever heard. It is louder than a shotgun louder, than thunder, louder than the loudest slammed door.
Does hand have a long a sound?
No. Hand has a short A sound as in can and sand.
How does a ear trumpet work?
An ear trumpet is actually somewhat like a stethoscope that a doctor uses to make it easier to hear your heart or fluid in your lungs. The stethoscope channels more sound into the doctors ear. An ear trumpet is even similar to putting your cupped hand behind your ear in order to better hear someone talking from a distance. Try it. You can see the sound seems louder when you put your hand, cupped, around the back side of your ear. Take your hand down and the "loudness" decreases. Hard of hearing folks often do this very thing. Some animals have vastly larger ears than humans. These large ears collect more of the sound (like your cupped hand did) and directs MORE sound into the ear canal. This is basically what an ear trumpet is doing. A number of animals have ears that they can even rotate forward or backward, which allows them to better determine which direction the sound is coming from, a distinct advantage if a predator is sneaking up from the rear. Since ear trumpets work similarly to the above examples - in other words a relatively large bell or cup shaped end running to a smaller opening that is place in the ear - the larger bell collects a great deal more sound than the smaller ear and then the sound is directly channeled into the ear canal - making it easier for the person to hear. In that manner of speaking, yes, an ear trumpet does make a sound louder for the person using the device. What it is actually doing is COLLECTING more sound and channeling it more directly into the ear. The end result is a more understandable sound for the user.
Is the a and hand considered a short a sound?
Yes, the 'a' in 'hand' is considered a short a sound.
What do are you hearing when you hold a seashell to your ear?
When you put a seashell next to your ear, it's the sound of your blood surging in your veins, not the ocean.http://www.howstuffworks.com/question556.htm" Some people have suggested that the sound you hear from the seashell is the echoing of your blood rushing through the blood vessels of your ear. That is not the case. If that were true, then the sound would intensify after exercising, since your blood races faster after exercising. However, the sound is the same even after exercising.Others say that the whooshing sound inside the shell is generated by air flowing through the shell - air flowing through the shell and out creates a noise. You'll notice that the sound is louder when you lift the shell slightly away from your ear than it is when the shell is right against your head. However, this theory doesn't hold true in a soundproof room. In a soundproof room, there is still air, but when you hold the seashell to your ear, there's no sound.The most likely explanation for the wave-like noise is ambient noise from around you. The seashell that you are holding just slightly above your ear captures this noise, which resonates inside the shell. The size and shape of the shell therefore has some effect on the sound you hear. Different shells sound different because different shells accentuate different frequencies. You don't even need the seashell to hear the noise. You can produce the same "ocean" sound using an empty cup or even by cupping your hand over your ear. Go ahead and try it and vary the distance at which you place the cup near your ear. The level of the sound will vary depending on the angle and distance the cup is from your ear.Noise from outside the shell also can change the intensity of the sound you hear inside the shell. You can look at the shell as a resonating chamber. When sound from outside enters the shell, it bounces around, thus creating an audible noise. So, the louder the environment you are in, the louder the ocean-like sound will be. "
Does and have a long a sound?
No. The A has a short A sound in "and" as in hand and can.
When was The Sound of One Hand Clapping created?
The Sound of One Hand Clapping was created in 1997.
Does hand have a short or long A sound?
Short a sound
What is the sound heard here?
It is the sound of one hand clapping.
Does 'and' have a long or short a sound?
The A has a short A sound, as in ant and hand.
Does and have a long or short a sound?
The A has a short A sound, as in ant and hand.
Does the word and have a long a sound?
Nope. "And" has a short A sound, as in can or hand.
