Sound Waves

sound waves are compression waves, or longitudinal waves. sounds that we hear are actually just compressions and rarefactions of air particles, meaning the air particles move closer together for a time period then spread apart farther then they normally would(a rarefaction)

The pitch of sound refers to how high or low a sound is perceived. It is determined by the frequency of the sound waves, with higher frequencies producing higher pitched sounds and lower frequencies producing lower pitched sounds.

The frequency of this sound wave is very near constant.

Balloons can make some fun noises when you pinch and stretch the opening as you let the air out! The reason a balloon makes a higher pitch when you pull tighter comes from the amount of movement allowed. Because the air pushes through the opening of the balloon against the tightened rubber, this rubber vibrates as it gets pushed apart and pushes back together against the air. The tighter this opening, the less leeway the rubber has to move, and the faster it will vibrate, causing a higher pitch.

Well, it has to follow the inverse square law, so that as distance increases, the sound intensity drops by the square of the proportionate change in distance. The intensity will be 1/16 at 4 times the distance.

Commercially sold television receivers have always included a circuit for sound.

Historically, the first successful transmission of synchronized sound and video took place on 13 June, 1925 when Charles Francis Jenkins sent a 48 line mechanical system image of film and sound five miles in a test transmission.

Symbol amplitude refers to the magnitude or strength of a symbol in a communication system. It is the intensity of the signal representing a specific symbol, which can impact the signal-to-noise ratio and the quality of the communication. In digital communication, symbol amplitude is crucial for accurate symbol detection and decoding.

The time it takes for the sound to travel to the cliff and back as an echo is 4 seconds. Since the sound wave travels twice the distance to the cliff and back, the total distance traveled is 2 × 680 = 1360 meters. Using the formula speed = distance/time, we can calculate the speed of sound. The period of the sound wave is the time it takes for one complete cycle, which in this case is the time it takes for the sound to travel to the cliff and back, which we found to be 4 seconds.

Reverberation can be reduced by varios methods:

1:Hang up heavy drapes from the ceiling to the floor.

2:Coverhard floors with thick carpet.

3:Install acoustical ceiling tiles in the room.

4:Increase the insulation above the ceiling of the room and between the walls.

Sonic the hedgehog is a gaming character and a franchise created by SEGA to rival Nintendo's Mario.

The term Sonic can also be used to describe the speed of sound e.g. Sonic Boom, super sonic, sonic speed.

The frequency of a typical hand clap is around 250 to 500 Hz. This means that the clap creates 250 to 500 sound waves per second.

The frequency of the sound wave will remain unchanged when it refracts from air to water.

Forget the A-weighting filter to measure in dBA. In vacuum (that means no surrounding medium) there is no transportation of sound possible. So there will be no sound level.

The frequency of a sound wave determines the pitch of the sound, with higher frequencies corresponding to higher pitches and lower frequencies corresponding to lower pitches.

Sound travels in longitudinal waves, which means that the particles of the medium move in the same direction as the wave is propagating. This is in contrast to transverse waves where the particles move perpendicular to the wave's direction.

In terms of microwaves themselves, the dangers are largely limited to the effects of the heat generated when the microwaves interact with human tissue. The greatest risk of high power microwaves is to the eyes, where the heat cannot be quickly removed by the cooling effect of the blood supply. Hence, corneas are particularly vunerable to micriwave heating. The testes in males are also vulnerable, although it is generally less likely that they will be exposed to microwaves.

In terms of microwave oven use, there are two principle dangers - The first is superheated liquids (liquids above their normal boiling point), which can flash-boil when, for example, instant coffee, sugar, or any other power is added. The second (and at one time the cause of most microwave oven accidents) comes from exploding unbroken eggs, as the yolk heats so efficiently that, even if the egg doesn't explode in the microwave, it can explode in the user's face when it is removed from the microwave oven.

There are no reliable reports of adverse health effects from low-level microwaves from such things as mobile phones or telecom masts.

Airplanes do not use sonar waves. Sonar is a technology primarily used underwater to detect objects or measure distances by emitting sound waves. Airplanes generally use radar technology to detect and track objects in the sky.

Scroll down to related links and look for "Closed or Gedackt Organ Pipes - Wikipedia". Organ builders still tend to use feet rather than metres when dealing with organ pipe length and tone e.g. an 8 foot pitched pipe is the same pitch as a piano, and is called '8 foot' because the longest pipe of the rank at this pitch ( the C below the C below Middle C) is 8 feet long. A 4-foot pipe is an octave higher, a 2 foot 2 octaves higher, and a 16 foot rank an octave lower than piano pitch. The fundamental tone of 16.4 Hz represents a 32-foot organ pipe, which is found, except in the very largest organs, only in the pedal section of large instruments. Although the 32 foot pitch is found frequently on large instruments (like cathedral organs) it is not the deepest note of an organ as stated in the question. Some organs, such as the Atlantic City Auditorium organ, USA and Liverpool Cathedral Organ in the UK have 64-foot ranks giving the lowest note as 8.2 Hz. On most organs offering 64-foot ranks, the sound is either produced by a stopped 32-foot pipe, or acoustically, where two shorter pipes are tuned so that the beats between them produce a 64-foot tone. Many huge organs do have a 64' rank (usually called gravissima), but nearly all of them are produced by either a stopped 32' or acoustically. There are not more then 5 organs that has a true (not acoustic, stopped, nor digital), (only counting the rank(S) that accually goes down to the sub-sub-contra C) 64 foot rank, three of them are the organ at the Atlantic City Convention Hall Main Auditorium, the organ at Sydney City Hall, and the one at Worcester Cathedral, in UK. The shortest lengh that will produce 16.4Hz (CCCC) is 16 ft, although this note is the C of the sub-contra octave, this 16ft pipe is stopped on the top, so it produces the note that corresponds to twice that lengh(32ft) . Also should be mentioned, the lowest (true) note on an acual organ is CCCCC which is 8 Hz, that single note cannot be heard alone. THE lowest note is produced by either stopping the 64' or combining the 64' and the fifth(42 2/3) to produce a 128' CCCCCC which is 4 Hz. Ｔhe　lowest note is produced by combinding a stopped 64' ( 128') and stopped 42 2/3' (85 1/3') to produce a resultant 256' which is 2Hz on CCC CCC C, this note is not considered audible by the human ear

Pitch is the frequency at which an object vibrates to create a sound. A tuning fork, for example, that vibrates 440 times a second will produce a perfect "A" note. It is these predetermined levels of frequencies that pitch is categorized into the twelve chromatic musical tones.

If the high frequency sound is within hearing range, you can hear it as a high-pitched sound. If it's out of the hearing range you can't hear it, of course.

Sound is vibration transmitted through a solid, liquid, or gas. To see sound waves as longitudinal waves in air moving, scroll down to related links and look at "Longitudinal wave - Wikipedia".

No, you can not produce sound in a vacuum. Sound wave needs medium (for example air) to travel unlike electromagnetic wave which can travel through empty space.actually, sound wave does not propagate itself rather it needs a medium by which sound particle can transfer there energy from one place to other, so it seems like moving.

for eg. when u throw a stone in water ,some ripples form in water they seems to moving but not. like this sound propagate.

hence it requires medium

The pitch of sound refers to how high or low a sound is perceived. It is determined by the frequency of the sound wave, with higher frequencies corresponding to higher pitch and lower frequencies corresponding to lower pitch.

Sound is the shape of the sound wave. Not influenced by, is. Another way of saying that is "The shape of a sound wave affects how rough or smooth that sound sounds". For example: a pure sine wave (which looks similar to a capital letter "S" lying on its side) sounds smooth whilst a pure square wave ( |--|--|--|--|--|-- ) sounds rough. A jagged, sawtooth-shaped sound wave ( \/\/\/ ) sounds "harsh", somewhere between smooth and rough. People speak of the "harshness" of a sound. Another way of describing the quality of a sound is its "timbre". If you really want to be able to explain and understand how the shape of a sound wave affects its quality or timbre you'll find there is a lot of electronics and musical instrument technology to be studied. To start, why not see if you can borrow some books such as "How a music keyboard works" and "How to design a music synthesiser" from the library?

Sound waves are waves of energy created by the vibration of a source (vibrating phone, vocal cords, etc.) that travel through a medium (air, water, solids). This means that the plant will get extra energy aside from sunlight that will make it grown at faster rates. It depends how fast those sound waves travel (frequencies) and how loud the sound waves are. Hope that answers your question!