Sound is a form of:
a) Electrical energy
b) Mechanical energy
c) Thermal energy
d) Radiant energy
Answer: b) Mechanical energy
Sound waves are produced by:
a) Vibrating objects
b) Moving objects
c) Heat energy
d) Light energy
Answer: a) Vibrating objects
The unit of frequency is:
a) Hertz (Hz)
b) Watts (W)
c) Newton (N)
d) Joule (J)
Answer: a) Hertz (Hz)
Sound waves travel through:
a) Vacuum
b) Solid only
c) Liquid only
d) Solid, liquid, and gas
Answer: d) Solid, liquid, and gas
The speed of sound in air at room temperature is approximately:
a) 330 m/s
b) 440 m/s
c) 550 m/s
d) 660 m/s
Answer: b) 440 m/s
The part of the ear that collects sound waves is called the:
a) Eardrum
b) Cochlea
c) Auditory canal
d) Pinna
Answer: d) Pinna
The human ear can detect sound waves in the frequency range of:
a) 20 Hz to 20 kHz
b) 1 Hz to 100 Hz
c) 1 kHz to 10 kHz
d) 10 kHz to 100 kHz
Answer: a) 20 Hz to 20 kHz
The pitch of a sound is determined by its:
a) Frequency
b) Amplitude
c) Wavelength
d) Speed
Answer: a) Frequency
The loudness of a sound is determined by its:
a) Frequency
b) Amplitude
c) Wavelength
d) Speed
Answer: b) Amplitude
The reflection of sound waves is called:
a) Refraction
b) Diffraction
c) Absorption
d) Echo
Answer: d) Echo
The phenomenon of bending of sound waves around obstacles is called:
a) Reflection
b) Refraction
c) Diffraction
d) Absorption
Answer: c) Diffraction
Sound travels fastest in:
a) Air
b) Water
c) Steel
d) Vacuum
Answer: c) Steel
The process of converting sound energy into electrical energy is used in:
a) Microphone
b) Loudspeaker
c) Headphones
d) Echo chamber
Answer: a) Microphone
The process of converting electrical energy into sound energy is used in:
a) Microphone
b) Loudspeaker
c) Headphones
d) Echo chamber
Answer: b) Loudspeaker
Which property of sound allows us to distinguish between different musical instruments?
a) Frequency
b) Amplitude
c) Timbre
d) Pitch
Answer: c) Timbre
Sound waves are an example of:
a) Transverse waves
b) Longitudinal waves
c) Electromagnetic waves
d) Mechanical waves
Answer: b) Longitudinal waves
The unit of amplitude is:
a) Hertz (Hz)
b) Watts (W)
c) Newton (N)
d) Decibel (dB)
Answer: c) Newton (N)
The process of converting sound energy into mechanical vibrations is used in:
a) Microphone
b) Loudspeaker
c) Headphones
d) Echo chamber
Answer: b) Loudspeaker
The process of converting electrical energy into sound energy is used in:
a) Microphone
b) Loudspeaker
c) Headphones
d) Echo chamber
Answer: b) Loudspeaker
The process of converting sound energy into electrical energy is used in:
a) Microphone
b) Loudspeaker
c) Headphones
d) Echo chamber
Answer: a) Microphone
The phenomenon of persistence of sound after the source has stopped is called:
a) Reverberation
b) Resonance
c) Doppler effect
d) Absorption
Answer: a) Reverberation
The device used to amplify and control the volume of sound is called a:
a) Microphone
b) Loudspeaker
c) Amplifier
d) Headphones
Answer: c) Amplifier
The device used to detect and measure sound intensity is called a:
a) Microphone
b) Loudspeaker
c) Amplifier
d) Sound level meter
Answer: d) Sound level meter
The characteristic of sound that allows us to distinguish between soft and loud sounds is called:
a) Pitch
b) Timbre
c) Loudness
d) Resonance
Answer: c) Loudness
The frequency range of human hearing is approximately:
a) 20 Hz to 20 kHz
b) 1 Hz to 100 Hz
c) 1 kHz to 10 kHz
d) 10 kHz to 100 kHz
Answer: a) 20 Hz to 20 kHz
The part of the ear that amplifies sound vibrations is called the:
a) Eardrum
b) Cochlea
c) Auditory canal
d) Ossicles
Answer: d) Ossicles
The process of analyzing and adjusting sound frequencies to produce a desired sound quality is called:
a) Echo
b) Reverberation
c) Resonance
d) Equalization
Answer: d) Equalization
The device used to convert sound waves into electrical signals for recording or transmission is called a:
a) Microphone
b) Loudspeaker
c) Amplifier
d) Sound level meter
Answer: a) Microphone
The device used to convert electrical signals into sound waves for listening is called a:
a) Microphone
b) Loudspeaker
c) Amplifier
d) Sound level meter
Answer: b) Loudspeaker
The phenomenon of change in the pitch of sound due to the relative motion between the source and the observer is called:
a) Reflection
b) Refraction
c) Doppler effect
d) Interference
Answer: c) Doppler effect
The unit used to measure the intensity or loudness of sound is:
a) Hertz (Hz)
b) Watts (W)
c) Newton (N)
d) Decibel (dB)
Answer: d) Decibel (dB)
The process of converting sound energy into electrical energy is used in:
a) Microphone
b) Loudspeaker
c) Headphones
d) Echo chamber
Answer: a) Microphone
The process of converting electrical energy into sound energy is used in:
a) Microphone
b) Loudspeaker
c) Headphones
d) Echo chamber
Answer: b) Loudspeaker
The part of the ear that converts sound vibrations into electrical signals is the:
a) Eardrum
b) Cochlea
c) Auditory canal
d) Pinna
Answer: b) Cochlea
The process of reducing the amplitude or intensity of sound waves is called:
a) Amplification
b) Attenuation
c) Compression
d) Expansion
Answer: b) Attenuation
The device used to measure the intensity or loudness of sound is called a:
a) Microphone
b) Loudspeaker
c) Amplifier
d) Sound level meter
Answer: d) Sound level meter
The process of converting electrical energy into sound energy is used in:
a) Microphone
b) Loudspeaker
c) Headphones
d) Echo chamber
Answer: b) Loudspeaker
The process of converting sound energy into electrical energy is used in:
a) Microphone
b) Loudspeaker
c) Headphones
d) Echo chamber
Answer: a) Microphone
The process of combining two or more sound waves to create a new wave is called:
a) Reflection
b) Refraction
c) Interference
d) Absorption
Answer: c) Interference
The device used to measure the intensity or loudness of sound is called a:
a) Microphone
b) Loudspeaker
c) Amplifier
d) Sound level meter
Answer: d) Sound level meter
The unit used to measure the frequency of sound is:
a) Hertz (Hz)
b) Watts (W)
c) Newton (N)
d) Decibel (dB)
Answer: a) Hertz (Hz)
The process of reducing the amplitude or intensity of sound waves is called:
a) Amplification
b) Attenuation
c) Compression
d) Expansion
Answer: b) Attenuation
The phenomenon of the bending of sound waves as they pass from one medium to another is called:
a) Reflection
b) Refraction
c) Diffraction
d) Absorption
Answer: b) Refraction
The process of converting electrical energy into sound energy is used in:
a) Microphone
b) Loudspeaker
c) Headphones
d) Echo chamber
Answer: b) Loudspeaker
The process of converting sound energy into electrical energy is used in:
a) Microphone
b) Loudspeaker
c) Headphones
d) Echo chamber
Answer: a) Microphone
The unit used to measure the intensity or loudness of sound is:
a) Hertz (Hz)
b) Watts (W)
c) Newton (N)
d) Decibel (dB)
Answer: d) Decibel (dB)
The process of analyzing and adjusting sound frequencies to produce a desired sound quality is called:
a) Echo
b) Reverberation
c) Resonance
d) Equalization
Answer: d) Equalization
The phenomenon of change in the pitch of sound due to the relative motion between the source and the observer is called:
a) Reflection
b) Refraction
c) Doppler effect
d) Interference
Answer: c) Doppler effect
The device used to convert sound waves into electrical signals for recording or transmission is called a:
a) Microphone
b) Loudspeaker
c) Amplifier
d) Sound level meter
Answer: a) Microphone
The device used to convert electrical signals into sound waves for listening is called a:
a) Microphone
b) Loudspeaker
c) Amplifier
d) Sound level meter
Answer: b) Loudspeaker
The device used to measure the intensity or loudness of sound is called a:
a) Microphone
b) Loudspeaker
c) Amplifier
d) Sound level meter
Answer: d) Sound level meter
The device used to detect and measure sound intensity is called a:
a) Microphone
b) Loudspeaker
c) Amplifier
d) Sound level meter
Answer: d) Sound level meter
The process of combining two or more sound waves to create a new wave is called:
a) Reflection
b) Refraction
c) Interference
d) Absorption
Answer: c) Interference
The characteristic of sound that allows us to distinguish between soft and loud sounds is called:
a) Pitch
b) Timbre
c) Loudness
d) Resonance
Answer: c) Loudness
The unit used to measure the frequency of sound is:
a) Hertz (Hz)
b) Watts (W)
c) Newton (N)
d) Decibel (dB)
Answer: a) Hertz (Hz)
The phenomenon of the bending of sound waves as they pass from one medium to another is called:
a) Reflection
b) Refraction
c) Diffraction
d) Absorption
Answer: b) Refraction
The process of analyzing and adjusting sound frequencies to produce a desired sound quality is called:
a) Echo
b) Reverberation
c) Resonance
d) Equalization
Answer: d) Equalization
The process of reducing the amplitude or intensity of sound waves is called:
a) Amplification
b) Attenuation
c) Compression
d) Expansion
Answer: b) Attenuation
The phenomenon of change in the pitch of sound due to the relative motion between the source and the observer is called:
a) Reflection
b) Refraction
c) Doppler effect
d) Interference
Answer: c) Doppler effect
The device used to convert sound waves into electrical signals for recording or transmission is called a:
a) Microphone
b) Loudspeaker
c) Amplifier
d) Sound level meter
Answer: a) Microphone
