Sounds Mastery Quiz

Froggy Jumps

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Sound concepts for Grade 11

salman khilji

Thailand

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Sounds Mastery Quiz


Froggy Jumps Sounds Mastery QuizVersion en ligne Sound concepts for Grade 11 par salman khilji 1 Which property of a sound wave determines its pitch? a Frequency b Amplitude c Wavelength 2 The speed of sound in air at room temperature is closest to which value? a 343 m/s b 1500 m/s c 299,792 km/s 3 Which unit measures sound intensity or loudness? a Decibel (dB) b Watt (W) c Pascal (Pa) 4 If a car horn moves toward you, what happens to the perceived frequency? a It increases (Doppler effect) b It stays the same c It decreases 5 What causes the diffraction of sound around obstacles? a Amplitude of the wave b Wavelength comparable to obstacle size c Frequency too high 6 Which factor does NOT affect sound speed in a medium? a Color of the medium b Temperature c Density of the medium 7 Which phenomenon explains two loud sounds heard in phase when sounding together? a Constructive interference b Refraction c Destructive interference 8 Humans typically hear within which frequency range? a 0 Hz to 1 kHz b 20 kHz to 200 kHz c 20 Hz to 20 kHz 9 Which material generally transmits sound better than air? a Vacuum b Wood with air gaps c Water 10 Overtones relate to which concept in sound? a Amplitude decay b Doppler shift c Harmonics and timbre