Regarding SOUND, which statements would be INACCURATE? (SELECT ALL THAT ARE FALS

Question

Regarding SOUND, which statements would be INACCURATE? (SELECT ALL THAT ARE FALSE)

a wave of high amplitude would be heard as a loud sound

a high frequency sound will always be loud

a high frequency sound will have a smaller wavelength than a low frequency sound.

a low amplitude wave will be a 'soft' sound, like a whisper.

low frequency sounds will always be quiet (like a whisper)

a wave of high amplitude would be heard as a loud sound

a high frequency sound will always be loud

a high frequency sound will have a smaller wavelength than a low frequency sound.

a low amplitude wave will be a 'soft' sound, like a whisper.

low frequency sounds will always be quiet (like a whisper)

Explanation / Answer

Sound is a form of energy. The characteristics of sound waves include amplitude, frequency and wavelength. The amplitude of a sound wave refers to the distance of maximum vertical displacement of the wave from its mean position. Higher the amplitude, louder the sound and lower the amplitude, softer the sound. The frequency of sound refers to the rate of vibration that occurs when the sound waves travel through air. Higher frequency sounds are high pitched and lower frequency sounds are low pitched. Wavelength and wavelength of the sound waves are invesely related. Higher the wavelength, lower the frequency and vice versa. So, the correct answers for this question are options A, C, D.

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