Sound waves on an oscilloscope

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Presentation transcript:

Sound waves on an oscilloscope David Bailey 13/11/2018 © Class Leading Ltd. 2013 Free for non-commercial educational use provided that this copyright notice is included.

“The higher the amplitude, the louder the sound” Sound waves on an oscilloscope Low amplitude = quiet sound High amplitude = loud sound Increasing amplitude Increasing loudness “The higher the amplitude, the louder the sound” © Class Leading Ltd. 2013 Free for non-commercial educational use provided that this copyright notice is included. 13/11/2018

“The shorter the wavelength, the higher pitched the sound” Sound waves on an oscilloscope Long wavelength = low pitched sound Short wavelength = high pitched sound Decreasing wavelength Increasing pitch “The shorter the wavelength, the higher pitched the sound” © Class Leading Ltd. 2013 Free for non-commercial educational use provided that this copyright notice is included. 13/11/2018

“The higher the frequency, the higher pitched the sound” Sound waves on an oscilloscope Low frequency = low pitched sound High frequency = high pitched sound Increasing frequency Increasing pitch “The higher the frequency, the higher pitched the sound” © Class Leading Ltd. 2013 Free for non-commercial educational use provided that this copyright notice is included. 13/11/2018

Sound waves on an oscilloscope 1. Compared to this sound, how are the other sounds different? Same pitch Louder 2. 3. Higher pitch Quieter Higher pitch Same loudness © Class Leading Ltd. 2013 Free for non-commercial educational use provided that this copyright notice is included. 13/11/2018