Which of the following statements about sound waves is incorrect?Sound waves cannot travel through a vacuumSound waves are longitudinal wavesIt is not possible to measure the wavelength of a sound waveThe vibrating particles which make up a sound wave form more dense regions called compressions and less dense regions called rarefactions2Domestic cats can hear sound waves with a maximum wavelength of 6 m. What is the frequency of a sound wave with this wavelength? The speed of sound in air is approximately 330 m/s.55 Hz324 Hz0.018 Hz (2 s.f.)1,980 Hz3What is the function of the cochlea?It allows the ear to detect very quiet soundsIt protects the ear against infectionIt controls air pressure within the earIt converts vibrations within the ear into electrical signals4What is the range of frequencies over which the human ear can detect sound waves?From 20 Hz to 2,000 HzFrom 20 Hz to 20,000 HzFrom 20 Hz to 20,000 kHzFrom 20 Hz to 200,000 Hz
Question
Which of the following statements about sound waves is incorrect?Sound waves cannot travel through a vacuumSound waves are longitudinal wavesIt is not possible to measure the wavelength of a sound waveThe vibrating particles which make up a sound wave form more dense regions called compressions and less dense regions called rarefactions2Domestic cats can hear sound waves with a maximum wavelength of 6 m. What is the frequency of a sound wave with this wavelength? The speed of sound in air is approximately 330 m/s.55 Hz324 Hz0.018 Hz (2 s.f.)1,980 Hz3What is the function of the cochlea?It allows the ear to detect very quiet soundsIt protects the ear against infectionIt controls air pressure within the earIt converts vibrations within the ear into electrical signals4What is the range of frequencies over which the human ear can detect sound waves?From 20 Hz to 2,000 HzFrom 20 Hz to 20,000 HzFrom 20 Hz to 20,000 kHzFrom 20 Hz to 200,000 Hz
Solution
-
The incorrect statement about sound waves is "It is not possible to measure the wavelength of a sound wave". We can indeed measure the wavelength of a sound wave.
-
To find the frequency of a sound wave, we use the formula: Speed = Frequency x Wavelength. Rearranging for Frequency gives us: Frequency = Speed / Wavelength. Substituting the given values: Frequency = 330 m/s / 6 m = 55 Hz.
-
The function of the cochlea is to convert vibrations within the ear into electrical signals.
-
The range of frequencies over which the human ear can detect sound waves is from 20 Hz to 20,000 Hz.
Similar Questions
What determines a sound wave's frequency?Multiple choice question.amplitudepitchtimbrewavelength
Sound waves areMultiple choice question.waves that move matter.waves that travel in a vacuum.longitudinal waves.transverse waves.
A sound source sends waves of 400 Hz. It produces waves of wavelength 2.5 m. The velocity of sound waves isSelect an answerA100 m/sB1000 m/sC10000 m/sDNone of these
Which of the following is NOT a property of sound?A.It attenuates most in soft materials.B.It is fastest in a vacuum.C.It is a longitudinal wave.D.It is a pressure wave.
Which of the following correctly describes sound waves?A They are transverse waves.B They are a part of the electromagnetic spectrum.C They are longitudinal waves.D They do not require a medium for transmission.
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.