Sound and Waves Quiz - Learn About Sound Waves and Frequencies

Question 1 of 36

What is the speed of sound in air at 20°C?

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343 m/s

300 m/s

350 m/s

400 m/s

Question 2 of 36

Which type of wave is a sound wave?

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Transverse

Longitudinal

Surface

Electromagnetic

Question 3 of 36

What is the unit of frequency?

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Decibel

Hertz

Meter

Newton

Question 4 of 36

Which phenomenon explains why a car engine sounds different when it’s moving away from you?

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Doppler Effect

Refraction

Diffraction

Interference

Question 5 of 36

What does the decibel (dB) measure?

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Frequency

Intensity

Speed

Wavelength

Question 6 of 36

What type of wave is light?

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Longitudinal

Transverse

Mechanical

Surface

Question 7 of 36

What is the range of human hearing?

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20 Hz to 20 kHz

50 Hz to 15 kHz

100 Hz to 10 kHz

10 Hz to 50 kHz

Question 8 of 36

Which material is the best conductor of sound?

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Air

Water

Steel

Wood

Question 9 of 36

What is the phenomenon where sound bends around obstacles called?

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Refraction

Diffraction

Reflection

Interference

Question 10 of 36

What is the lowest frequency sound that humans can typically hear?

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20 Hz

50 Hz

100 Hz

200 Hz

Question 11 of 36

What effect does increasing the amplitude of a sound wave have?

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Increases pitch

Increases loudness

Increases frequency

Decreases speed

Question 12 of 36

What is the phenomenon where two sound waves of different frequencies combine to form a new sound?

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Interference

Refraction

Doppler Effect

Diffraction

Question 13 of 36

What is the term for the distance between two consecutive peaks of a sound wave?

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Frequency

Amplitude

Wavelength

Speed

Question 14 of 36

Which property of sound changes with the medium it travels through?

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Frequency

Speed

Wavelength

Pitch

Question 15 of 36

What is the term for the sound that is produced when an object vibrates?

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Resonance

Echo

Noise

Tone

Question 16 of 36

What phenomenon is responsible for the sound of thunder?

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Reflection

Refraction

Diffraction

Rapid expansion of air

Question 17 of 36

Which part of the ear is responsible for converting sound vibrations into nerve impulses?

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Outer ear

Middle ear

Inner ear

Auditory nerve

Question 18 of 36

What is the term for a sound wave with a frequency above the audible range for humans?

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Infrasound

Ultrasound

Microwaves

Radio waves

Question 19 of 36

How does the pitch of a sound relate to its frequency?

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Higher frequency = Lower pitch

Lower frequency = Higher pitch

Higher frequency = Higher pitch

No relationship

Question 20 of 36

What type of wave is a radio wave?

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Transverse

Longitudinal

Mechanical

Surface

Question 21 of 36

Which phenomenon explains the change in pitch of a passing siren?

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Doppler Effect

Refraction

Diffraction

Interference

Question 22 of 36

What is the effect of temperature on the speed of sound?

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Higher temperature increases speed

Higher temperature decreases speed

Temperature has no effect

Speed is constant

Question 23 of 36

What term describes the reduction in sound intensity as it travels through a medium?

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Absorption

Reflection

Refraction

Diffraction

Question 24 of 36

What is the primary factor that determines the pitch of a musical note?

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Amplitude

Frequency

Speed

Wavelength

Question 25 of 36

What is the term for sound that is reflected off a surface and heard again?

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Echo

Resonance

Interference

Diffraction

Question 26 of 36

What is the phenomenon called when a sound wave passes from one medium to another and bends?

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Refraction

Diffraction

Reflection

Interference

Question 27 of 36

What is the term for the combination of sound waves that results in a louder sound?

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Constructive interference

Destructive interference

Refraction

Absorption

Question 28 of 36

Which unit measures the loudness of a sound?

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Watt

Hertz

Decibel

Newton

Question 29 of 36

What is the term for the lowest frequency of a vibrating object?

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Fundamental frequency

Overtone

Harmonic

Resonant frequency

Question 30 of 36

Which of the following is not a type of sound wave phenomenon?

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Diffraction

Interference

Resonance

Reflection

Refraction

Question 31 of 36

What is the name of the effect where sound waves bend around the edges of an obstacle?

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Diffraction

Interference

Absorption

Reflection

Question 32 of 36

What term is used to describe sound waves with frequencies below the range of human hearing?

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Ultrasound

Infrasound

Microwaves

Radio waves

Question 33 of 36

What is the term for the change in direction of sound waves as they pass from one medium to another?

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Refraction

Diffraction

Reflection

Absorption

Question 34 of 36

What factor determines the loudness of a sound?

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Frequency

Amplitude

Speed

Wavelength

Question 35 of 36

Which term describes the bouncing of sound waves off a surface?

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Reflection

Refraction

Diffraction

Absorption

Question 36 of 36

What is the term for the phenomenon where two sound waves of slightly different frequencies produce a fluctuating sound intensity?

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Beats

Echo

Resonance

Interference

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