Choose the BEST answer to the following: The sound waves that most humans cannot hear are (a) infrasonic. (b) ultrasonic. (c) Both of these. (d) Neither of these.

Q: When we crack a whip, a loud noise is created. Why?

A: When we crack a whip, speed of the tip is greater than that of sound. If the speed of a source is…

Q: Why do I sometimes hear resonant tones that are higher in frequency than the fundamental frequency?

A: The doppler effect is the phenomenon in which the relative frequency of sound varies from the…

Q: Choose the BEST answer to the following: The loudness of a sound is most closely related to its (a)…

A: When we play a song, we hear low sound and high sound from a same instrument and same voice but we…

Q: A certain note has a frequency of 1000 Hz. What is the frequency of a note one octave above it? Two…

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Q: Which sound is unwanted and irritating?

A: Some of the highly pitched sounds or Higher frequency components are irritating. Most of the…

Q: A pigeon takes the infrasonic hearing prize, what is meant by the statement?

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Q: If sound becomes louder, which wave characteristic is likely increasing—frequency, wavelength,…

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Q: Mara is building a wind chime. She needs string with the following lengths: six pieces of 20 cm, 3…

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Q: The longer the sound waves are, the ______________ (lower/higher) theirfrequency is and the…

A: If the sound waves are longer, then their frequency will be lower.

Q: Choose the BEST answer to the following: Bow waves are produced by waves of water (a) overlapping…

A: A bow wave is a wave propagated through fluids such as water and air. It is produced as a result of…

Q: What is meant by sound ranging? Give one use of sound ranging?

A: Sound ranging is a method for determining the distance between a point and the position of a sound…

Q: Distinguish between sound intensity and loudness?

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Q: Which is a more objective measurement- sound intensity and loudness? Defend your answer.

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Q: 1,530 m/s, how deep

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Q: Which interact more with high pitched sounds- small bells or large bells?

A: We know that a high pitch sound refers to a high frequency sound wave and low pitch refers to a low…

Q: Suppose that water waves have a wavelength of 4.1 m and a period of 2.3 s. What is the velocity of…

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Q: As you move away from a source emitting sound waves, the of the sound you hear decreases.

A: When a receiver is moving farther away from source emitting sound then the frequency of the sound…

Q: Choose the BEST answer to the following: Compared with a sound of 60 decibels, a sound of 80…

A: In decibel the sound intensity can be expressed as,

Q: What is supersonic speed?

A: Supersonic speed is the speed of an object travelling faster than the speed of the sound in air.

Q: Distinguish between infrasonicultrasonic sound waves.

A: Sound is a vibration that propagates as a wave through a medium such as a gas, liquid, or solid. The…

Q: Name the characteristic which enables one to distinguish the sound of two muscial instruments even…

A: Timber is the character or quality of a musical sound or voice as distinct from its pitch and…

Q: How many nodes, not including the endpoints, are there in a standing wave that is two wavelengths…

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Q: The string waves and the sound waves must have the same

A: Explanation: Frequency of sound produced by source remains constant  . Frequency of vibration of…

Q: Does sound travel faster in warm air than in cold air? Defend your answer.

A: Sound travels faster in warm air than in cold air.

Q: A doppler effect occurs when a source of sound moves   A) away from you B) towards you C) Both A…

A: The apparent change in the frequency of the light waves or the sound waves due to relative motion in…

Q: If sound becomes louder, which wave characteristics is likely increasing- frequency, wavelength,…

A: Since sound is not traveling in different mediums, therefore its speed does not change. Since the…

Q: Choose the BEST answer to the following: Compared with the sound you hear from the siren of a…

A: The Doppler effect is the change in the frequency of the wave in relative to the motion of the…

Q: Choose the BEST answer to the following: Sound travels in air by a series of (a) compressions. (b)…

A: Sound wave is a pressure wave which is produced when there is a vibration of the molecules of the…

Q: Which of these type of waves carry energy? O Seismic waves O Sound waves O They all do O Water waves

A: Seismic waves are generated during an earthquake. They are like vibrations which move out from the…

Q: How many times greater is the intensity of sound from a concert speaker at a distance of 10 meters…

A: we know that  intensity of sound is inversely  proportional to the square of distance I  α  1/ r2…

Q: If a plane is heading towards you, the sound waves, emanating from the plane, that reach you will…

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Q: What is the relationship between frequency and wavelength of the sound with the motion of the source…

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Q: What types of noise are frequency dependent? Frequency independent?

A: Flicker and environmental noise are frequency dependent.

Q: In which of the following instruments is sound produced by striking O flute O violin trumpet O…

A: As we there are many musical instruments,in which sound is produced by striking. Some of the…

Q: A rule of thumb for estimating the distance in kilometers between an observer and a lightning stroke…

A: The speed of sound in air is around 330 m/s; the speed of light is 3x108 m/s. That means that, for…

Q: The reflection of sound in water called * O Echo O Frequency Sound cycle O Wavelength O Velocity

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Q: The sound waves with a frequency below 20 Hz is called Оа. Xraу b. Ultrasonic O c. Audible d.…

A: Given data: Frequency of sound wave = below 20 Hz Required: Type of sound wave

Q: What kinds of wind conditions would make sound more easily heard at long distances? Less easily…

A: The direction of wind flow makes the sound heard difference at long distances.

Q: What is the physics and dynamic behind the navigation of aircraft/ airplanes? How they defy the…

A: There are four powers following up on an airplane. They are as mentioned below. 1)Weight – acting…

Q: which interact with high pitched sounds- small bells or large bells?

A: The frequency response is commonly referred to as the pitch of the sound. A high pitch noise is a…

Q: What will happen when two sound waves of slightly different frequencies occur at the same time? How…

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Q: What are primary components of sound source?

A: Sound wave can be described by five characteristics:WavelengthAmplitudeTime-PeriodFrequencyVelocity

Shock Waves

Shock waves are common in continuum mechanics, and their dominance is attributable to the fact that they are stronger (or even less) compressible. Substantial perturbations propagated as sudden dynamic changes of a compressible medium supersonically. Shock waves are all around us in our daily lives. Lightning, earthquakes, volcanic eruptions, and meteorite impact all produce them in nature. Even the earth, which is protected by its magnetic field, generates a shock wave as in solar wind that travels around 20 Earth radiuses. These shock waves might be either constant, linked to the body, or unsteady, i.e., moving around with time. All of the shocks mentioned above can be damaging, so precautions must be taken to reduce their impact.