PHY 122 Lab 1

pdf

School

SUNY at Albany *

*We aren’t endorsed by this school

Course

122

Subject

Chemistry

Date

Feb 20, 2024

Type

pdf

Pages

7

Uploaded by davonial041401

Report
DaVonia LaMar 1/29/24 Wave Speed or Warp Speed Online Lab
Theory: The movement of waves is caused by disturbances in the water's surface, such as a droplet striking the water or wind blowing across it. This phenomenon is known as fluid dynamics. The distance between subsequent peaks or troughs is represented by the wavelength of these waves, or λ, which depends on several elements including surface tension and the type of initial disturbance. It also shows how far apart compressions are from one another. The number of waves that pass a certain spot in a unit of time, or frequency (f), depends on how quickly disruptions happen. Also, the higher frequencies result in shorter wavelengths Wavelength and frequency are multiplied to find the wave speed (v) (v = fλ), which indicates how rapidly the waves move across the water. When two or more waves collide and overlap in a way that causes their amplitudes to add together, creating a bigger wave, this is known as constructive interference. A resultant = A 1 + A 2 is the equation for two waves with amplitudes. The equation A resultant = A 1 -A 2 describes destructive interference, which happens when two waves collide and overlap in a way that causes their amplitudes to subtract, producing a wave with a reduced or zero amplitude.
Data: Destructive Constructive Water Frequency(Hz) Time 1 (s) Time 2 (s) Time 3 (s) AVG time (s) Wavelength (m) Wave speed (m/s) 0.62 1.81 1.76 1.26 1.61 0.040 0.025 0.75 1.35 1.40 1.26 1.34 0.027 0.020 0.84 1.26 1.13 1.18 1.19 0.018 0.015 0.80 1.18 1.40 1.18 1.25 0.013 0.010 0.72 1.35 1.35 1.46 1.39 0.010 0.007 Average 0.016
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
  • Access to all documents
  • Unlimited textbook solutions
  • 24/7 expert homework help
Sound Frequency(Hz) Time 1 (s) Time 2 (s) Time 3 (s) AVG time (s) Wavelength (m) Wave speed (m/s) 226.76 0.00465 0.00379 0.00479 0.00441 0.995 225.63 235.29 0.00445 0.00445 0.00385 0.00425 0.862 202.82 242.72 0.00419 0.00405 0.00412 0.00412 0.646 156.80 281.69 0.00372 0.00346 0.00346 0.00355 0.488 137.46 347.22 0.00326 0.00299 0.00239 0.00288 0.386 134.03 Average 171.35 Sample Calculations: v = fλ= 226.76(0.995)= 225.63m/s Average time = (0.00465+0.00379+0.00479) / 3 = 0.00441s average wave speed=(225.63+202.82+156.80+137.46+134.03) / 5 = 171.35m/s Percentage Difference= ∣∣ 0.010+0.020/((0.010−0.020)/2) ∣∣ ×100=33.33% Questions: 1.) What is your average wave speed for this simulation? a. 0.016 m/s 2.) Complete the sentence, “As the frequency of the drops increased, the wavelength _ decreases/ gets smaller _.” 3.) Describe the relationship you observe between the frequency and wavelength.
a. In a wave, frequency and wavelength have an inversely proportional relationship. Assuming that the wave speed stays constant, a wave's wavelength reduces as its frequency increases and vice versa. Stated otherwise, the product of wavelength and frequency for a certain wave propagating through a given medium remains constant. 4.) When you shared your data with another student, are any of the wave speeds greater than 10% difference? Which trials seem to be different? a. For both water and sound all the percentage differences are greater than 10%, indicating that there are significant differences between the corresponding wave speeds in the two sets. 5.) How do the speeds you calculated for your trials done in air compare to the speed you found for the water waves? Which type of wave travels faster? Explain why the speeds are different. a. For both air and water waves, the two speeds I computed are entirely different. A wave's speed is determined by the medium it passes through. The density and compressibility of air are two factors that affect sound speed in the atmosphere. The density and surface tension of the water, among other factors, affect the waves' speed. Sound waves move far more quickly than water waves in general. This is because compared to water, air is more compressible and less thick. Faster energy transfer is made possible by the compressions and rarefactions of air molecules, which cause sound waves to propagate. Conversely, water waves have a slower wave speed because the movement of the water particles is more complicated.
6.) This lab allows you to see waves that we sometimes do not see in real life, (we can’t see sound waves) so there are some benefits to doing simulations for labs but we do have error when conducting any experiment. Describe in detail some places where error may be a factor in the collection of your data for the simulation. How do you propose to reduce error (error cannot be eliminated completely.) ? a. Errors in Reaction time may arise from the accuracy of the stopwatch or timing device used to measure the time intervals in the simulation. The wavelength measurement may be affected if the wave's length is not measured accurately. Reaction time mistakes are also introduced by the human factor while starting and pausing the stopwatch or taking measurements. Reduce response time mistakes by honing the method and making sure it is consistent. Make sure to double-check all calculations and data entry. Whenever possible, collect and analyze data using automated technologies. Conclusion: In conclusion, this lab gave us important new understandings of the basic properties of waves and the variables that affect their behavior. A greater comprehension of the connection between frequency, wavelength, and wave speed in both sound and water waves was made possible by the data gathered and examined. Wavelengths and wave speeds were determined for the water wave using the frequencies and timings that were recorded. According to the inverse connection between frequency and wavelength, the results showed that the wavelength reduced as the frequency increased. These settings caused the wave speed to vary from trial to trial. It was discovered that the average wave speed was around 0.016 m/s. The frequencies and timings
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
  • Access to all documents
  • Unlimited textbook solutions
  • 24/7 expert homework help
were also used to calculate wave speeds and wavelengths in the case of sound. The average sound speed in air was determined to be around 171.35 m/s. This far faster speed than in the water wave experiment brought to light the ways that air and water have different wave propagation properties.