sound mcqs in physics with answers

Important Speed of Sound MCQs with Answers

Speed of sound MCQs with answers for Technical Cadet Course, Army Education Officers and PAF initial tests are given.

Sound MCQs for Physics Tests (Part-1)

Physics questions related to sound mcqs are given below:

  • The speed of sound in air at room temperature is about ______ meters per second. ( 343)
  • The speed of sound is the fastest ______. (Answer: solids)The speed of sound is the slowest ______. (gases)
  • The speed of sound in water is approximately ______ meters per second. (1482)
  • The speed of sound in a vacuum is ______ meters per second. (0)
  • The speed of sound increases by ______ in the environment. (Temperature)
  • At higher altitudes, where the air is less dense, the speed of sound __________. (Decreases)
  • The speed of sound in steel is approximately ______ meters per second. (5960)
  • The speed of sound is approximately ______ times greater in water than in air. (4)
  • The speed of sound affects the ______ of the medium. (density)
  • The speed of sound is __________ in greater elasticity. (faster)
  • The speed of sound is __________ in a medium with less elasticity. (slower)
  • The speed of sound at a higher temperature is __________. (faster)
  • At a lower temperature, the speed of sound is __________. (slower)
  • The speed of sound does not depend on the ______ of the sound wave. (frequency)
  • Sound loudness is defined as the amount of ______ per unit area carried by sound waves. (energy)
  • The volume of sound is usually measured in units of ______. (decibels)
  • The human hearing threshold corresponds to an intensity of about ______ decibels. (0)
  • Sound volume doubles for every ______ decibel increase. (3)
  • The strength of a sound 100 times louder than the human hearing threshold is ______ decibels. (20)
  • The strength of a sound 1000 times louder than the human hearing threshold is ______ decibels. (30)
  • The strength of a sound 10,000 times louder than the human hearing threshold is ______ decibels. (40)
  • The sound volume decreases by ______ from the sound source. (distance)
  • According to the inverse square law, sound intensity is inversely proportional to the distance from the source ______. (Square)

Sound MCQs for Physics Tests (Part-2)

Physics questions related to sound mcqs are given below:

  • The volume of sound decreases by ______ decibels when the distance from the source is doubled. (6)
  • The volume of sound decreases by ______ decibels when the distance from the source is halved. (-6)
  • The volume of sound decreases by ______ decibels when the distance from the source decreases to a tenth. ( -20)
  • Sound volume increases when sound waves are ______. (focused or concentrated)
  • The volume of sound affects the ______ through which the sound travels. (Absorption)
  • Prolonged exposure to sound levels above ______ decibels can cause hearing damage. (85)
  • Resonance occurs when an object is subjected to an oscillating force at its ______ frequency. (natural)
  • The ______ of an object is the frequency at which it naturally tends to vibrate. (natural frequency)
  • When an object is subjected to a vibrational force with its natural frequency, the ______ increases significantly. (amplitude)
  • Resonance can occur in many systems, including __________, mechanical structures, and electrical circuits. (musical instruments)
  • In musical instruments such as guitars or violins, resonance increases the ______ produced. (voice)
  • Resonance is essential to __________ because it amplifies and preserves the sound produced by the vocal cords. (human speech)
  • ______ is an example of a resonant cavity in the human body that is used to produce sound. (sound path)
  • The phenomenon of resonance is used in __________ where sound waves bounce back and forth to form standing waves. (acoustic resonators)

More Physics questions related to sound mcqs are given below:

Past Physics Sound MCQs (Multiple Choice Questions)

Physics Sound MCQs (Multiple Choice Questions) with answers for GD Pilots, PAF Education Instructor Jobs, PAF Logistics Branch, PAF Air Defence Branch, PAF Aeronautical Engineering Branch.

Sound MCQs for Physics Tests (Part-3)

Physics questions related to sound mcqs are given below:

  • Resonance occurs in __________ when the length of the air column corresponds to a certain wavelength. (wind instrument)
  • ______ is an example of a wind instrument that relies on resonance to produce sound. (flute)
  • Resonance is essential to __________, where the vibrations of the vocal cords produce resonant frequencies to produce certain sounds. (singing)
  • In __________, resonance is used to detect structural defects or weaknesses by exposing objects to specific frequencies. (nondestructive testing)
  • ______ is the process of reducing or eliminating the resonance of a system to prevent unwanted vibrations. (Attenuation)
  • In electrical circuits, ______ is used to tune radio receivers to specific frequencies. (Resonance)
  • ______ is an example of an electrical circuit component that resonates at certain frequencies. (capacitor)
  • Haloes are ______ times the fundamental frequency of a vibrating object. (Integer)
  • The fundamental frequency is the ______ frequency at which an object vibrates. (lowest)
  • The first harmonic is also known as ______ frequency. (fundamental frequency)
  • The second harmonic is a ______ multiple of the fundamental frequency. (second)
  • The second harmonic has __________ wavelength and __________ fundamental frequency. (half, double)
  • The third harmonic is ______ times the fundamental frequency. (third)
  • The third harmonic has __________ wavelength and __________ fundamental frequency. (third, triplet)
  • Overtones are ______ frequencies that are integer multiples of the fundamental frequency. (additional)
  • Overtones are __________ higher than the fundamental frequency. (pitch)
  • When a musical instrument produces sound, it usually contains a combination of the fundamental frequency and its ______. (overtones)

Sound MCQs for Physics Tests (Part-4)

Physics questions related to sound mcqs are given below:

  • Sound quality, or __________, is affected by the presence and relative strength of different overtones. (ringing)
  • In a vibrating string, the harmonic ______ has two nodes and one antinode. (Second)
  • The ______ harmonic of a vibrating string has three nodes and two antinodes. (third)
  • The ______ harmonic of a vibrating string has four nodes and three antinodes. (fourth)
  • In a closed tube, the first harmonic corresponds to the ______ wavelength. (full).
  • Sound waves need ______ to travel. (Medium)
  • Sound waves can travel through __________, liquids and gases. (solids)
  • In ______, sound waves can travel fastest in the immediate vicinity of particles. (solids)
  • In __________, sound waves can travel more slowly than solids because the distance between the particles is greater. (liquids)
  • In ______, sound waves usually travel the slowest due to the large distances between the particles. (gases)
  • The speed of sound in an environment is affected by the ______ of the environment. (Properties)
  • The speed of sound in a medium is directly proportional to its __________. (elasticity)
  • The speed of sound in a medium is inversely proportional to its ______. (Density)
  • The speed of sound in air increases by ______. (more)
  • The speed of sound in water is approximately ______ meters per second. (1482)
  • Sound waves travel ______ times faster in water than in air. (about 4)
  • Sound waves travel ______ times faster in steel than in air. (about 17)
  • The ______ of an environment can affect the propagation of sound waves. (temperature)
  • The ______ of an environment can affect the speed of sound waves. (density)

Important Questions About Sound MCQs with Answers

Questions about sound mcqs with answers for PN Cadets, Navy Education Branch, Navy Ordnance Branch. Which help to understand the past questions which were given in the initial tests of Pak Defence forces jobs.

Sound MCQs for Physics Tests (Part-5)

Physics questions related to sound mcqs are given below:

  • The ______ of a medium can be determined at the limits of the behavior of sound waves. (elasticity)
  • An acoustic resonator is a system that emits ______ at certain frequencies. (resonance)
  • An acoustic resonator consists of ______ that can vibrate or resonate. (cavity)
  • A cavity is an enclosed space that can trap ______ waves. (sound)
  • The natural frequencies at which a cavity resonates are determined by its ______ and ______. (size, shape)
  • The __________ of a cavity affects the resonant frequencies it can produce. (dimensions)
  • A common example of an acoustic resonator is a ______ that amplifies sound waves. (sound box)
  • In musical instruments such as guitars, the body of the instrument acts as an acoustic resonator, increasing the ______ produced. (sound)
  • Helmholtz resonators are acoustic resonators that consist of a ______ connected to a cavity. (neck or throat tube)
  • Helmholtz resonances are selectively used for __________ or __________ for certain frequencies. (amplify, dampen)
  • Pipergens ______ are acoustic resonators that amplify and modify the sound produced by the pipes. (resonator chambers)
  • ______ is an example of a hollow resonator in the human body that enhances sound production. (vocal tract)
  • ______ is the process of adjusting the size or shape of a cavity to change its resonant frequencies. (Adjustment)
  • The ______ of a pit can be adjusted by opening or closing its openings. (Volume)
  • Cavity resonances can be used to improve __________ sound quality and loudspeaker reflection. (loudspeakers)
  • Acoustic resonators are essential in __________, architectural acoustics, and musical instrument design. (Acoustics)
  • ______ is the branch of psychology that studies how people perceive and interpret sound. (Psychoacoustics)
  • ______ is a unit of volume or loudness. (decibel)
  • ______ is a unit of sound frequency or pitch. (Hertz)

Sound MCQs for Physics Tests (Part-6)

Physics questions related to sound mcqs are given below:

  • ______ is the range of frequencies that humans can hear, usually 20 Hz to 20,000 Hz. (audible spectrum)
  • The lowest frequency that humans can hear is known as ______. (threshold of hearing)
  • ______ is the highest frequency that humans can hear and is also known as the upper limit of human hearing. (pain threshold)
  • ______ is a graphical representation of a person’s hearing sensitivity at different frequencies. (equally strong outline)
  • ______ is the psychological aspect of sound, which corresponds to the frequency of the sound wave. (Pitch)
  • ______ is the psychological aspect of sound, which corresponds to the intensity or amplitude of a sound wave. (Loud)
  • ______ is a phenomenon where our ears perceive a deviation from the actual frequency due to complex sound wave patterns. (tone perception)
  • ______ is the process by which our ears distinguish between sounds coming from different directions. (Localization)
  • ______ is the time between when sound reaches one ear and when it reaches the other ear, which helps localize sound. (time difference between sounds)
  • ______ is the difference in volume between the two ears that helps locate the sound. (interaural level difference)
  • ______ is the ability to focus on a specific sound source amidst background noise. (auditory attention)
  • ______ is the phenomenon where the sound following a loud sound seems softer than it actually is. (volume recruiting).

See More

  • Important Sound Multiple Choice Questions and Answers PDF (Download)
  • Free Speed of Sound MCQs with Answers PDF (Download)
  • Free Online MCQs of Physics for Initial Tests in PAF (Download)

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