- #1
Josielle Abdilla
- 50
- 4
Summary:: The Hot chocolate effect is an investigation that extracts the essence about the effects on speed of sound. This is carried out in this sequence: A cup filled with liquid is continiously being tapped from the bottom. Meanwhile, a disturbance in the longitudinal sound waves is being caused by the formation of bubbes on adding hot chocolate powder
At first, the effective speed of sound decreases as hot chocolate powder is added. At which point does a standing wave is created, is it when the wave caused by the tappung sound reflects off the surface of liquid and interferes with the wave which has not yet reached the surface of the liquid.
a) According to my research, this is created when a note of frequency of a quarter of a wavelength is formed, what exacty does this mean and is frequency dependent on the depth of the cup?
b) Also, where is a displacement and pressure node is created?
c) When will the note with highest frequency be heard?
Thanks.. looking foward to help my out :)
At first, the effective speed of sound decreases as hot chocolate powder is added. At which point does a standing wave is created, is it when the wave caused by the tappung sound reflects off the surface of liquid and interferes with the wave which has not yet reached the surface of the liquid.
a) According to my research, this is created when a note of frequency of a quarter of a wavelength is formed, what exacty does this mean and is frequency dependent on the depth of the cup?
b) Also, where is a displacement and pressure node is created?
c) When will the note with highest frequency be heard?
Thanks.. looking foward to help my out :)