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WorksheetsReasoning Lab Wave Data
Total questions: 10
Worksheet time: 5mins
Which experiment (s) demonstrate the effect of linear density upon the speed of a wave?
experiment 1
experiment 2
experiment 3
experiments 1 & 2
Which of the following quantities is the independent variable in Experiment 1?
wavelength
frequency
speed of waves
amount of mass hanging at end of rope
Which two trials in Experiment 1 demonstrate the effect of doubling the frequency upon the wavelength and the speed of the waves in the rope?
Trials 1 & 2
Trials 1& 3
Trials 2 & 4
Trials 1 & 4
Suppose that the students conduct a trial in Experiment 1 in which they formed a standing wave with 6 nodes. What is the approximate frequency, wavelength and speed that could be expected in such a trial?
f = 187 Hz, Wavelength = 0.75 m, Speed = 140 m/s
f = 218 Hz, Wavelength = 0.64 m, speed = 140 m/s
f = 218 Hz, wavelength = 1.35 m, speed = 280 m/s
f = 249 Hz, wavelength = 0.56 m, speed = 140 m/s
Which statement describes the relationship between wavelength and frequency?
Wavelength has no affect on Frequency
As the wavelength gets longer, the frequency gets bigger
As the wavelength gets longer, the frequency gets smaller
When the amount of mass hanging on the left end of the rope is doubled, the tension is doubled. Which two trials in Experiment 2 demonstrate the effect of the doubling of the tension upon the speed of the waves in the rope?
Trials 5 & 6
Trials 5 & 8
Trials 6 & 7
None of the trials demonstrate this effect
Consider Experiment 2. When the amount of mass hanging on the left end of the rope is doubled, the tension is doubled. In Experiment 2, how does the tension have to be changed in order to cause the speed to increase by a factor of two (double the speed)?
The tension must be doubled (factor of two)
the tension must be tripled (factor of three)
the tension must be increased by a factor of 4
No matter how the tension is changed, the speed will never double
What frequency, wavelength and speed values might be expected if a trial was conducted in Experiment 2 with a mass of 4 kg hanging on the left end of the rope?
f = 187 Hz, wavelength = 1.5 m, speed = 280 m/s
f = 187 Hz, wavelength = 1.5 m, speed = 396 m/s
f = 264 Hz, wavelength = 1.5 m, speed = 280 m/s
f = 264 Hz, wavelength = 1.5 m, speed = 396 m/s
Which statement best describes the purpose of Experiment 3?
To study the effect of changes in tension upon the speed of waves in the rope
To see what combination of frequency and wavelength make the speed the greatest
To determine the effect of mass per unit length upon the speed of waves in the rope
To vibrate the rope at different frequencies, to measure wavelength and to calculate speed
Two strings on a guitar have the same length and the same tension. They vibrate with the same standing wave pattern when plucked. But STring A has twice the linear density as String B. How does the frequency at which String A vibrates compare to the frequency at which String B vibrates?
String A and B vibrate at the same frequency
String A vibrates at a higher frequency that B
String A vibrates at a lower frequency than B
It is impossible to compare frequencies with so little info
