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the sound caoacity for human beings are from 20 hz to 20000 hz.we use ultrasound to check the defects of metals
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∙ 13y ago
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Why should you be careful whenever you use a pointed object?
when we use a pointed object it will hurt the eardrum and we cannot hear
How does sound travel through wire?
Sound, in terms of the vibrations that we actually hear, does not travel long-distance through wires. For phone calls and such, the "sounds" are encoded as electrical signals, which then pass through the wires, to be translated into sounds at the other end. However, actual sound could travel short distances through wires. For example, if you tap your headphone cord right now, you may or may not hear it, depending on what kind of cord and headphones you use. This is an example of actual sound, not electrical signals, passing through a wire. It is important to realize that the sound you hear when you tap your cord does NOT come from the speakers. They can only interpret signals, and cannot amplify actual vibrations in the wire.
What type of energy do humans use?
Humans use muscular energy, sound energy and many other
How do humans use waves?
humans use waves for things like surfing, body boarding, fishing etc.
Which sense can be used to determine an object's ability to reflect light?
ARE YOU KIDDING ME?! *sigh* You use your sense of sight to determine an object's ability to reflect light because- pay close attention now-1. You cannot smell light2. You cannot feel light (though you can feel heat)3. You cannot hear light4. And, finally, you cannot taste light.Hope this helps. ☺
Why can't humans hear the sound of a bat?
Bats use echolocation to sense movement and their surroundings. We cannot hear the high pitched noise they emit because it is of a higher frequency than the human ear can register. There are some sounds of a bat that we can hear, but the sounds that we can't hear is because the squeaks are so high that you really need ultrasound to hear it.
What resources do humans use that causes climate change?
None. Despite what you may hear, humans do not and likely cannot change climate.
What mammal makes sounds people cant hear?
Bats. They are blind and use echolocation to navigate when they are flying. They emit high pitched sounds humans ears are unable to hear. The sound frequency in a human voice is too low pitched for them to hear.
How would use personification in a sentence?
EX--->Hear the wind sing as it is blowing. the wind cannot sing;the wind cannot do something humans can, that is personification. :)
What part of the body do rabbit's use to hear sound's?
They use their ears to hear sounds
What do you use to hear sounds?
Your ears lol.
What are two examples of how animals use sounds that people can't hear?
list two examples of how animals use sounds that people cant hear.
Why can dogs hear more sounds than humans?
Yes. "Dog's sense of hearing has an almost equally important role within their world. Not only do dogs have a highly developed sense of hearing that can hear a wide range of sounds but they also have the ability to pin point the exact origin of the sound, discriminate between sounds and make a accurate interpretation of the sound, and decided whether it is threatening or non-threatening. As dog's ears are able to move in different directions, it is easier for dogs to pinpoint the exact location of a sound's origin. The frequencies that dogs can perceive and hear are almost twice that of humans and they can pick up and distinguish sounds at roughly 4 times the range of humans. Dogs have specially designed inner ears that allow them to have this incredible ability and their ears operate almost like radars. Not only do dogs hear the sounds but also perceive the height and depth of the sounds that they hear. Dogs also have the ability to hear ultra high frequencies that humans cannot and many professional dog handlers and trainers use this ability to their advantage by teaching them and training them to respond to different commands given on whistles that produce ultra high frequency sounds.
What is 1 fun fact of a bat?
Bats cannot see, so they use sound that humans can't hear to receive signals about what is in front of them.
Do dolphins see better than people?
No, they just use echolocation to tell where things are. Echolocation is making shrill sounds that humans can't hear that bounce off things. The dolphins have special organs that allow them to hear these sound waves.
What are two names of animals that use sounds humans can't hear to communicate or navigate?
Bats, hermit crabs and, elephants. I did that research for a school project once. I am glad i could be of help!
Do corns have ears?
not ears as such as humans but they do have holes in their head which they use to hear :)
