1. What will this wave look like after it reflects?
What will this wave look like after it reflects?
The pulse on the left is moving right, the pulse on the right is moving left. What do you see when the pulses overlap?
If these two waves were moving through water at the same time, what would the water look like?
A student started the speaker by clicking on the stopwatch. How many sound waves are there is this trial?
What is the speed of the sound waves shown here?
A. 300 m/s
B. 331 m/s
C. 0.0030 m/s
D. 66 m/s
What is the frequency of the sound waves shown here?
A. 0.0037 Hz
B. 66 Hz
C. 260 Hz
D. 300 Hz
E. 330 Hz
What is the period of the sound waves shown here?
A. 0.0151 s
B. 0.0037 s
C. 260 s
D. 300 s
E. 330 s
What is the wavelength of the sound waves shown here?
A. 5 m
B. 1.3 m
C. 1 m
D. 0.71 m
E. 300 m
If your lab partner moved the frequency slider to the left so that it changed from 500 to 250 the new period would be:
A. twice as big
B. 1/2 as big
C. Stays the same
D. 1/4 times as big
E. Not enough information to decide
If you moved the slider to the far right, doubling the amplitude, the period would be:
If the speaker vibrates back and forth at 200 Hz how much time passes between each time it produces a maximum in pressure?
A. 0.2 seconds
B. 0.200 seconds
C. 0.005 seconds
D. 0.02 seconds
E. 0.05 seconds
A speaker is playing a constant note. What happens to the sound when you:
1) put a solid, thick glass jar over it and
2) pump the air out from the jar?
A) 1 => hardly any difference; 2 => hardly any difference
B) 1=> hardly any difference; 2 => much quieter
C) 1=> noticeably quieter; 2 => hardly any MORE quiet
D) 1=> noticeably quieter; 2=> much quieter still (near silence)
E) None of these/something else/??
If you could put a dust particle in front of a moving speaker. Which choice below shows the motion of the dust particle?
The picture shows “displacement as a function of location along a string”. What is the wavelength (“λ”)?
The picture shows “displacement as a function of location along a string”. What is the amplitude?
What is the period of this wave?
A t3 - t2
B t4 - t1
C t2 - t1
D t3 - t1
E None of the above
Which one of the following is most likely to be impossible?
A. Transverse waves in a gas
B. Longitudinal waves in a gas
C. Transverse waves in a solid
D. Longitudinal waves in a solid
E. They all seem perfectly possible