Standing Waves Introduction
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- Опубликовано: 25 июл 2024
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Reflection with and without inversion caused by fixed and free ends are demonstrated. Standing wave patterns at 5 different frequencies are demonstrated. A standing wave animation is shown to understand to how standing wave patterns are created. Nodes and antinodes are defined and demonstrated. Want Lecture Notes? www.flippingphysics.com/stand... This is an AP Physics 1 Topic.
Based on a suggestion from Dan Russell, I redid the "reflection with and without inversion" part. This is much better. Thanks Dan!
0:00 Reflection with inversion due to a fixed end
0:29 Reflection without inversion due to a free end
1:00 The demonstration at 15 Hz
1:37 Why the Liquid Crystal Display (LCD) is flashing
2:16 The demonstration at 30 Hz
3:21 The 15, 30, and 45 Hz demonstrations all together
4:12 “Plucking” the string to visualize the wave pulses
4:40 The standing wave animation
7:39 Defining nodes and antinodes using the animation
8:15 Identifying nodes and antinodes in the demonstrations
9:36 Standing wave patterns only work at certain wavelengths
Next Video: Determining the Speed of a Standing Wave - Demonstration
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Thank you to Kristie Webb for transcribing the English subtitles of this video.
#StandingWaves #Transverse #Reflection #Inversion #Node #Antinode
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Thanks. I figured it was worth updating. Do not know why I missed doing it that way in the first place. Oh well!
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@Layarion Thank you Layarion. I make similar corrections when I see people apply incorrect usage of "your", "you're", "there", "their", and "they're". I must have typed really fast and had a brain fart when I was making this message.
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Thank you for the video, especially the part in the beginning. I have looked through so many videos on the topic and yours is pretty much the only good one, so I will use yours in class. I just found it by accident since the search did not show it. May I suggest you also add the term "wave reflection" to it?
Glad you found my videos! I did add "wave reflection" as a keyword, however, in my experience as a creator, the keywords do not help overmuch. Also, the words "wave" and "reflection" are already in the description and keywords.
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For the first time I can see that the interference between the wave and its reflection creates the standing wave and the frequency has to be specific (the phases) for it to form.