Sound Waves

They use echolocation. They have an extremely highly developed ability to detect echoes from high pitched sounds that they emit. They are so skilled that they can locate and catch flying insects while they themselves are flying. They are well adapted to their habitats, and even if they could know what vision is, it wouldn't occur to them that they are worse off because they don't have it.

It is theoretically possible to break bullet-proof glass with a loud sound, but it would require a sound level significantly higher than what the human voice is capable of producing. The glass is designed to withstand impacts and is highly resilient to shattering.

Coins are made of different metals.Metals have their own characteristic modulus of elasticity.Due to this modulus(here Young's modulus)different metals have different frequency of vibration.some rings clearly and some others are low in sound.

Absorbing a sound means reducing its intensity or volume by converting the sound energy into another form, such as heat or vibration. Materials like foam, carpets, and acoustic panels are commonly used to absorb sound waves by dampening their strength and reducing their reverberation.

not normally connected with waves. A sudden tip or roll to one side is a suggestion, although is more applies to a ship or a staggering person. It is an act of swaying abruptly, perhaps waves do that.

Lots of mass (very low resonant frequency)

Low stiffness (very high co-incident frequency)

All materials have both a resonant and co-incident frequency, at which sound is transmitted more efficiently. Materials where these frequencies occur outside of the range of hearing (20 - 20,000 Hz) are better for sound proofing.

With lead, the resonant frequency is below 20Hz and the co-incident frequency is about 20,000Hz.

Speed of sound (M/Sec):

Sea water at 0C: 1450

Sea water at 20C: 1522

Sea water at 30C: 1545

Butyl rubber/carbon (100/40): 1600

Neoprene: 1510

Neoprene/carbon (100/60): 1690

Rubber (natural): 1600

So, on the whole, sound is slightly faster in rubber

The decibel scale is logarithmic, with each increase of 10 decibels representing a tenfold increase in sound intensity. This means that a sound at 20 decibels is 10 times more intense than a sound at 10 decibels, and a sound at 30 decibels is 100 times more intense than a sound at 10 decibels.

The most familiar kind of surface wave is an ocean wave, which is caused by the wind transferring energy to the water's surface. These waves can vary greatly in size and strength, depending on factors such as wind speed and duration.

If the surface area of the vibrating body is decreased, the loudness of the sound will also decrease. This is because less energy is being transferred to the surrounding air, resulting in a quieter sound.

The visible light spectrum ranges from approximately 400 to 700 nanometers in wavelength, corresponding to a frequency range of about 430 to 750 terahertz. This spectrum includes the colors of light that human eyes can perceive, from violet to red.

Meters per second

Seeing as nobody has answered I will.

Im not entirely sure so double check with a physics teacher but

once its absorbed the fabric slightly heats up. like 0.0005 degrees.

When absorbed reflection of sound is prevented.

High pitch sounds are typically associated with closely spaced sound waves. In general, high frequency sound waves have shorter wavelengths and closer wave crests, leading to a higher perceived pitch. Conversely, low pitch sounds have longer wavelengths and greater spacing between wave crests.

Frequency applied to sound waves refers to the number of cycles or vibrations that occur within a specified time frame. It is measured in Hertz (Hz) and determines the pitch of the sound produced - higher frequency results in higher pitch, while lower frequency results in lower pitch.

Higher frequency sound waves are not necessarily louder than lower frequency sound waves. The perceived loudness of a sound is more dependent on the amplitude or intensity of the sound wave, rather than its frequency.

The sound has really nothing to do with sea level, but changes with temperature alone. The speed of sound goes up when the temperature goes up and goes down when the temperature goes down. The frequency of sound columns, like of woodwinds or of church organs changes with temperature. If the temperature increases, the frequency increases also.

131 decibels is extremely loud and can cause immediate hearing damage, especially if exposed to for prolonged periods. This level of noise is like standing next to a jet engine during takeoff. It is recommended to use ear protection when exposed to sounds at this intensity.

Acoustic protection is important to protect individuals from experiencing excessive noise levels, which can lead to hearing loss, stress, and other health issues. It is also crucial for creating comfortable and productive environments in workplaces, schools, and residential areas. Additionally, acoustic protection helps to preserve natural habitats and reduce the impact of noise pollution on wildlife.

If *all* of the air was removed, the bell would vibrate if it was rung, but there would be no air to carry the vibrations to the jar walls, so there would be no sound. If only part of the air was removed, the sound would be poorly carried and would not have the same amplitude (volume).

(At around 1/100,000th of an atmosphere, low frequency sounds like a bell will no longer be carried because the molecules are farther apart than the wavelength. This is considered a near vacuum.)

Sound has many characteristics. One of them is Quality ( or Timbre) .It enables us to distinguish between the sounds of same pitch and loudness produced by different people. The quality of the sound depends on which vibrating part produces the sound and the material of which the part is made. Thus, the voices of the people can be distinguished by their voice quality even without seeing them.

Fibonacci frequencies are frequencies for musical notes based on intervals that approximate ratios of the first few Fibonacci numbers: 1, 1, 2, 3, 5, 8.

The table below lists the name of the note, the Fibonacci ratio, the calculated frequency and the actual frequency. They are based on A = 440 Hertz.

A 1:1 440 440.00 Start

A 2:1 880 880.00 Octave

D 2:3 293.33 293.66 Fourth

F 2:5 176 174.62 Augmented fifth

E 3:2 660 659.26 Fifth

C 3:5 264 261.63 Minor third

E 3:8 165 164.82 Fifth

C# 5:2 1100 1108.72 Third

F# 5:3 733.33 740.00 Sixth

C# 5:8 275 277.18 Third

D 8:3 1173.33 1174.64 Fourth

F 8:5 704 698.18 Augmented fifth

The five properties used to explain the behavior of sound waves are frequency (pitch), amplitude (loudness), wavelength, speed, and direction. These properties help describe how sound waves travel and interact with different mediums.

Sound travels at approximately 1500 m/s in water. So, it would take about 2 seconds for a sound wave to travel through 3000 m of water.