1. 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.

2. “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

3. “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

4. “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

5. Sound waves on an oscilloscope1.
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