Wavelength, Frequency, Energy, Speed, Amplitude, Period Equations & Formulas - Chemistry & Physics
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- čas přidán 26. 08. 2016
- This chemistry and physics video tutorial focuses on electromagnetic waves. It shows you how to calculate the wavelength, period, frequency, and amplitude of a wave directly from sinusoidal or sine wave graph. This video contains plenty of notes, equations / formulas, examples, and practice problems.
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Here is a list of topics:
1. How to calculate the wavelength of a wave in meters using a graph
2. Inverse relationship of period and frequency
3. Wavelength - the length of a cycle
4. Period is the time it takes a wave to complete a single cycle
5. Frequency is the number of cycles that a wave completes in a single second
6. Units of Frequency - Hz
7. Determining the Amplitude Using the Maximum and Minimum points of a graph.
8. Trough vs Crest of a wave
9. Speed of light Formula of a EM wave in a vacuum and in a material such as water, glass, or diamond
10. Index of refraction, speed of light, and wavelength
11. Frequency of light remains the same
12. Energy of a photon, frequency and planck's constant formula
13. Converting Joules of Energy into Electron Volts eV
14. Electromagnetic Spectrum Chart
15. Infrared, Radio waves, microwaves, roygbiv, ultraviolet UV radiation, x-rays, gamma rays, and cosmic radiation
16. Longest to Shortest Wavelength - Radiowaves to Cosmic Rays
17. EM Spectrum in order of increasing energy and frequency
18. Visible light spectrum wavelength range - color chart diagram - 400nm to 700nm
19. Red, Orange, Yellow, Green, Blue, Indigo, and Violet.
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you mixed up the position of the crest and the trough
At which part of the video did I make a mistake?
The Organic Chemistry Tutor 0:58
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Shaun Zulu I was just about to comment the same thing. Crest is on top. Trough is on the bottom.
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crest and trough, he switched them somehow
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Hey, bro the Crest is the highest part of the wave and the trough is the lowest☺
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I have around 3500 data points that create a wave. My task is to detect the maximum range of the wavelenght, so basically the largest distance from the crest to the trough and since my wave is pretty irregular I was wondering if there is a method to calculate and detect it. Take into account that between the crest and the trough there are also points (values) that I would of course exclude since they are not my crest nor my trough point.
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Amplitude above x-value = 0 is a crest. Amplitude below x-value = 0 is a trough.
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The crest should be at the top where the 5 is because the crest is the highest point the medium rises to and the trough should be at -5 because that is the lowest point the medium drops to so you made a small error there at 0:50 in the video but otherwise you provided a good explanation! 👍😀
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question) I have 2 questions= (1)question(Is there any different in the math between light and sound and magnetic wave?) I have been able to do a standing wave at the precise frequency resonations of each element of the periodic table of elements that separates them into base particles. I took the math from the light emission spectrum for each element at this site ( chemistry.bd.psu.edu/jircitano/periodic4.html ) then I used windows picture editor to measure out each light spectrum it came out in non-meters per-second for each one of the light emissions. I am playing it out of speaker and able to break the junk I recycle down to base particles and then bring it back to me at the same time with the standing sound wave. Then to find the note, key, and frequency I took a guitar note guide for music and matched them up with the periodic table of elements. (2)question(Is that where they came up with the math for the periodic chart for the elements and can that help find the missing elements?) sorry if I am wasting your time on such a simple questions. I never went to college for this and thanks for any help in understanding this more?
Well for a transverse progressive wave, the crest supposes to be at the top of the trough.
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6:35This is the definition of the time period since wavelength is the spatial period of a wave.
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