Wave on a String

by | Sep 19, 2022 | Physics

***LINK TO SIMULATION https://phet.colorado.edu/sims/html/wave-on-a-string/latest/wave-on-a-string_en.html ***
How can we determine the speed of the wave? Come up with two ways (i.e., each with their own equation) to measure the speed of the wave. Do you predict that both methods will give the same result?
The first method we will test for measuring the speed of the wave is speed = distance/time, i.e., v = d/t.
Select Oscillate in the green box and select No End in the other green box.
Select Rulers and Timer in the wide green box.
Instead of continuous motion, single-step the wave by selecting the smaller of the two blue imagesThe advance button on the physics simulation.. Each time you select that image the wave advances. Select it many times (around 21 times) so that the peak of the wave is centered on 0 cm of the ruler. Now select the triangle to activate the timer. The timer will advance with each step of the wave.
Single-step the wave many times until the peak of the wave has moved from 0cm to 3cm and record the time on the timer (it will be in units of seconds). Divide the distance traveled (3cm) by the time shown on the timer and record the result as the speed of the wave.
Did you come up with a second way to measure the speed of the wave? You can use the fundamental wave equation, frequency x wavelength = speed, i.e. f λ = v
Move the ruler so that you can measure the separation between two wave peaks (in cm). That will be the wavelength. Read the frequency from the frequency meter in the wide green box. Multiply the wavelength and frequency to calculate the speed.
How did the two estimates of speed (the first using v = d/t and the second using f λ = v) compare? If you find a large discrepancy, please retry the measurements. If you find a small discrepancy, please explain it in your experiment report.
In the short video clip (https://youtu.be/T9QwiBFN9gI), a stone is tossed into a pond, and ripples are seen. What moves from one side of the pond to the other, water or energy? How about the vertical motion? Is it the water (i.e., medium) that moves up and down or the wave?
To explore this, turn off the Timer and select Slow Motion.
Select the main image (Pause/Play button) The stop/play button on the physics simulation. to start continuous wave motion and move the vertical ruler so it is adjacent to the 2nd green bead. Do you notice that the green bead (representing a portion of the medium) just moves up and down while the wave crest moves to the right? You can single-step the wave motion as you did in Activity 2 if it helps to see this.
What do you conclude moves vertically and what moves horizontally in the water ripple?
Use the simulation to make one observation about wave motion that you can’t yet explain.
One possibility is to select Pulse in the green box and Fixed End in the other green box. Then, select the triangle wave image The triangular wave pulse button on the physics simulation. on the wave generator and watch as the triangular wave pulse propagates to the right and is reflected. How does the reflected wave pulse compare to the original wave pulse?

Acceleration Due to Gravity Lab report

by | Sep 16, 2022 | Physics

Please write a lab report following the sample outline, complete the data sheets (results are written, only need some computations) and graph a linear scatter plot. Also answer the 5 questions. Thank you so much

Instantaneous Velocity Lab Report

by | Sep 8, 2022 | Physics

Please write a lab report on instantaneous velocity following the (Sample Format) attached and briefly answer the questions on Page-4. The data sheet and graph is already done. Thank you

The physics report is worth 10% of your final grade. The marking scheme is as fo

by | Jul 31, 2022 | Physics

The physics report is worth 10% of your final grade. The marking scheme is as follows:
• 3% for conveying subject knowledge/understanding
• 3% for structure/readability
• 2% for relevancy to module material
• 2% for creativity/engagement
The reports should be written at a level that your classmates would be able to understand
but do try to include more complex topics. The report should have an introduction, a main
body, and conclusions. Any figures should have a caption and include the source of the image
All of your references should be listed in a bibliography at the end of your report. There is no
specific format required for your references – references can be web pages, books, or
academic papers.
references should be in Harvard style

Week 3 Assignment Instructions Name: Please answer each of the questions below.

by | Jul 15, 2022 | Physics

Week 3 Assignment
Instructions
Name:
Please answer each of the questions below.
What is rectification?
Where is the rectifier located in the circuit and why must it be in that particular spot?
Define thermionic emission.
In a step-up transformer, will the output voltage be higher or lower than the input voltage? Will the output current be higher or lower than the input current?
What is the purpose of the autotransformer in X-ray circuitry? The step-up transformer? The step-down transformer? Where would you find each of these?
For each of the following, give the total number of X-ray pulses per second and the voltage ripple.
Half wave rectified direct current:
Full wave rectified direct current:
Full wave rectified three phase/six pulse direct current:
Full wave rectified three phase/twelve pulse direct current:
How does voltage ripple affect the quantity and quality of the X-ray beam?
Write a brief description of the following parts of the X-ray circuit: Timing circuit, mA meter, line compensator.
Writing Mechanics
Use a 12-point font.
Proofread and correct all errors in capitalization, punctuation, grammar, and spelling.
Submission Instructions
Type your name next to Name at the top of the document.
Save your file as a Word document (.docx).
Include the term Circuit and your Last Name when saving your file. Example: Circuit_Garcia.docx
Upload your completed document using the Browse button, and then click the Submit button.