Answers to Readers' Questions on Sound. Also refer to physical science, waveform, vibration, compression, matter, vacuum, characteristics, amplitude, volume, velocity, speed, air, frequency, pitch, wavelength, ear, microphone, Ron Kurtus, School for Champions. Copyright © Restrictions
Answers to Readers' Questions on Sound
The following 4 questions have been answered. They are listed according to date.
List of first 10 items
- Sound waves on planets
- Hearing sounds over 20,000 Hz
- What is sonar?
- Wants to go to school in acoustics
Sound waves on planets
Question
January 20, 2010
I wanna know about the sound waves in other planet and the earth and the air....
and i wanna know what happen with these waves in other planet?
Hanie - Iran
19084
Answer
Sound waves travel through the air on the Earth and through the atmosphere and other planets, provided they have an atmosphere. For example, the moon has no atmosphere, so sound does not travel there. Likewise, Mars has a very thin atmosphere, so sound barely travels there.
If the atmosphere is more dense and hotter than the Earth's atmosphere, the speed of sound will be greater than on Earth.
See: http://www.school-for-champions.com/science/sound_speed_gas.htm
Hearing sounds over 20,000 Hz
Question
January 18, 2010
I wanna know about the effects of the sounds that are over 20000hz and 10hz on humans....
and i wanna know about the waves on space!!!!
tnx
Hanie - Iran
19072
Answer
A normal human can hear between 20 Hz and 20,000 Hz. That means a person cannot hear sounds below 20 Hz and above 20,000 Hz. Although dogs can hear beyond that range. See:
http://www.school-for-champions.com/senses/hearpitch.htm
Sound waves do not travel in space, because they need air or some other material to travel. See:
http://www.school-for-champions.com/science/sound.htm
What is sonar?
Question
October 29, 2009
What is sonar?
sreyashi - India
18591
Answer
Sonar is similar to radar, except that sound is used. A sound wave is sent out and the echo is detected, giving information about the distance away and shape of the object.
Wants to go to school in acoustics
Question
July 15, 2009
Hi there,
My name is Matthew hart and I was reading over the material in your Sound Wave Topics and saw you had an email.
I'm not sure if you are the right person to ask but my whole life I have been extremely interested in sound, acoustics, and musical technology. My dad has a passion for his music, electronics, and speakers so he has taught me much. I am almost 17 looking for a college that specializes in these sorts of learning. If you have any recommendations or ideas I would love some feedback very much.
Thank you!!!
Matthew - USA
18024
Answer
Typically, you would first study physics or engineering before specializing. The problem is finding a school that offers the type of subjects you want. You might check with a nearby college to see what they offer. You also may be able to get some ideas.
Look at http://www.science-engineering.net/acoustics.htm for some good information.
Also look into the Acoustical Society of America at http://asa.aip.org/. See if they have a chapter in your location. They could give you some good advice.
Some college sites on acoustics and sound include:
http://www.pa.msu.edu/acoustics/
http://www.phys.unsw.edu.au/music/
I hope this helps. Best wishes in getting to the college of your choice and in having a good career in the sound/acoustics/music field.
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Answers to Readers' Questions on Sound