- #1
enirak
- 8
- 0
Am I missing something and doing this all wrong?
Experiment and data:
The level of water in the glass tube was adjusted by raising the supply tank until the sound from the tuning fork was at its loudest. This level corresponds to first resonance position and it was recorded. The mesurement was repeated 2 additional time
Room temperature = 20 degree C
Frequency= 500Hz
1. 16.5 cm
2. 16.3 cm
3. 16.4 cm
The second resonance position was found by lowering the water level in the column until the sound from the tuning fork was at its loudest. 2 additional mesurements weer made at this level
Room temperature
Frequency= 500Hz
1. 47.5 cm
2. 47.6 cm
3. 47.4 cm
Questions:
-For each length of reasoning air column, calculate the average of the 3 readings
-Calculate the wavelength of the sound wave in air from the lengths of the resonating air column
-Calculate the velocity of sound in air from the wavelenth found. Find the average of the 2 values
-Calculate the velocity of sound in air at room temperature from the known value of velocity of sound at 0 degree C
-Compare the values of the velocity of sound found in the calculations by finding yhe Percent error
Here's what I did so far:
first resonance position (would do the same calculations for second resonance position)
wavelength = 16.5 cm -16.3 cm = 0.2 cm = 0.002 m
L1 = (1/4)(0.002) = 0.0005 m
L2 = (5/4)(0.002) = 0.0025 m
L3 = (3/4)(0.002) = 0.0015 m
f1 = (1)(500) = 500 Hz
f2 = (5)(500) = 2500 Hz
f3 = (3)(500) = 1500 Hz
velocity(v) from wavelength(w)
? (need an example)
velocity from the known value
v= 331.4 + 0.6(20) = 343.4 m/s
then what?
Experiment and data:
The level of water in the glass tube was adjusted by raising the supply tank until the sound from the tuning fork was at its loudest. This level corresponds to first resonance position and it was recorded. The mesurement was repeated 2 additional time
Room temperature = 20 degree C
Frequency= 500Hz
1. 16.5 cm
2. 16.3 cm
3. 16.4 cm
The second resonance position was found by lowering the water level in the column until the sound from the tuning fork was at its loudest. 2 additional mesurements weer made at this level
Room temperature
Frequency= 500Hz
1. 47.5 cm
2. 47.6 cm
3. 47.4 cm
Questions:
-For each length of reasoning air column, calculate the average of the 3 readings
-Calculate the wavelength of the sound wave in air from the lengths of the resonating air column
-Calculate the velocity of sound in air from the wavelenth found. Find the average of the 2 values
-Calculate the velocity of sound in air at room temperature from the known value of velocity of sound at 0 degree C
-Compare the values of the velocity of sound found in the calculations by finding yhe Percent error
Here's what I did so far:
first resonance position (would do the same calculations for second resonance position)
wavelength = 16.5 cm -16.3 cm = 0.2 cm = 0.002 m
L1 = (1/4)(0.002) = 0.0005 m
L2 = (5/4)(0.002) = 0.0025 m
L3 = (3/4)(0.002) = 0.0015 m
f1 = (1)(500) = 500 Hz
f2 = (5)(500) = 2500 Hz
f3 = (3)(500) = 1500 Hz
velocity(v) from wavelength(w)
? (need an example)
velocity from the known value
v= 331.4 + 0.6(20) = 343.4 m/s
then what?