this was the experiment we did in class http://earthphysicsteaching.homestead.co…
if you scroll down you will see a nice simple diagram,
in the diagram it says "Water Level (Resonant Surface)"
so these are my questions:
can sound pass through water? water vapour?
will the water move and be a source of error when vibrations are sent down?
what is one non dangerous liquid that can be used that will not lead to that much error?
any additional details of sound and water?
thanks!
if you scroll down you will see a nice simple diagram,
in the diagram it says "Water Level (Resonant Surface)"
so these are my questions:
can sound pass through water? water vapour?
will the water move and be a source of error when vibrations are sent down?
what is one non dangerous liquid that can be used that will not lead to that much error?
any additional details of sound and water?
thanks!
-
Sound travels through all mediums.
This does not mean sound waves will continue to travel until they reach empty space, no.
Empty space is not a medium.
the water particles would move(vibrate) with the sound wave. The only 'error' that may occur is that splashing water will create sound waves (interference impulses) of its own, which may mask the initial sound waves moving through that body of water.
not sure this question is relevant due to my last answer.
Sound waves are disterbances that travel via particles transferring that specific wave frequency. Frequency is equivalent to pitch, amplitude determines the amount of disterbance (volume).
Fun Fact: Sirens from an emergency vehicle travelling towards you sound higher pitched than when stationary, and appear to have a lower pitch when travelling away from you. This is because the frequency (measured in Hz (1/s)) is compressed (increases) as the sound emitter travels closer to you, when travelling away the frequency decreases, resulting in the lower pitch.
the average infant ear can pick up 20 Hz to 20,000 Hz
the average adults ear picks up 20 Hz and 16,000 Hz
This does not mean sound waves will continue to travel until they reach empty space, no.
Empty space is not a medium.
the water particles would move(vibrate) with the sound wave. The only 'error' that may occur is that splashing water will create sound waves (interference impulses) of its own, which may mask the initial sound waves moving through that body of water.
not sure this question is relevant due to my last answer.
Sound waves are disterbances that travel via particles transferring that specific wave frequency. Frequency is equivalent to pitch, amplitude determines the amount of disterbance (volume).
Fun Fact: Sirens from an emergency vehicle travelling towards you sound higher pitched than when stationary, and appear to have a lower pitch when travelling away from you. This is because the frequency (measured in Hz (1/s)) is compressed (increases) as the sound emitter travels closer to you, when travelling away the frequency decreases, resulting in the lower pitch.
the average infant ear can pick up 20 Hz to 20,000 Hz
the average adults ear picks up 20 Hz and 16,000 Hz