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#iteachphysics

4 posts4 participants0 posts today
Sunanda<p>15 years of teaching (in some capacity or another)</p><p><a href="https://mstdn.social/tags/ITeachPhysics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ITeachPhysics</span></a> <a href="https://mstdn.social/tags/ITeachEngineering" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ITeachEngineering</span></a></p>
PhET Sims<p>Rutherford Scattering lets students identify factors that change the deflection of alpha particles and why these factors impact alpha particle deflection. <a href="https://mastodon.social/tags/atom" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>atom</span></a> <a href="https://mastodon.social/tags/iteachphysics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>iteachphysics</span></a> <a href="https://mastodon.social/tags/quantum" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>quantum</span></a><br><a href="https://phet.colorado.edu/en/simulations/rutherford-scattering/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">phet.colorado.edu/en/simulatio</span><span class="invisible">ns/rutherford-scattering/</span></a></p>
Rhett Allain<p>Thinking about the intro algebra-based <a href="https://mastodon.social/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a> course. What are the absolute bare minimum of topics that need to be covered in the first and second semester? <a href="https://mastodon.social/tags/iteachphysics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>iteachphysics</span></a></p>
Tobi Weh · NDS<p><a href="https://bildung.social/tags/physikEDU" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physikEDU</span></a> <a href="https://bildung.social/tags/iteachphysics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>iteachphysics</span></a> <a href="https://bildung.social/tags/physik" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physik</span></a> <a href="https://mastodon.social/@pfsmet/114970755869040087" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">mastodon.social/@pfsmet/114970</span><span class="invisible">755869040087</span></a></p>
STEMcoding Project<p>We're excited to release <a href="http://stemcoding.github.io" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">http://</span><span class="">stemcoding.github.io</span><span class="invisible"></span></a> which has an activity explorer where you can find all 44 of our activities! Check it out! <a href="https://mastodon.social/tags/iteachphysics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>iteachphysics</span></a> <a href="https://mastodon.social/tags/iteachmath" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>iteachmath</span></a> <a href="https://mastodon.social/tags/AAPTSM25" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>AAPTSM25</span></a> <a href="https://mastodon.social/tags/datascience" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>datascience</span></a> <a href="https://mastodon.social/tags/CS4All" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CS4All</span></a> <span class="h-card" translate="no"><a href="https://a.gup.pe/u/edutooters" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>edutooters</span></a></span></p>
Rhett Allain<p>How do you model a mass on a spring when the spring isn't massless? Here is a <a href="https://mastodon.social/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a> video with all the details using <a href="https://mastodon.social/tags/python" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>python</span></a> <a href="https://mastodon.social/tags/vpython" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>vpython</span></a> <a href="https://mastodon.social/tags/iteachphysics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>iteachphysics</span></a> </p><p><a href="https://youtu.be/AuBaQLGe8kI" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">youtu.be/AuBaQLGe8kI</span><span class="invisible"></span></a></p>
Rhett Allain<p><a href="https://mastodon.social/tags/python" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>python</span></a> <a href="https://mastodon.social/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a> - how do you model the motion of a mass on a spring when the spring is not actually massless? <a href="https://mastodon.social/tags/iteachphysics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>iteachphysics</span></a> </p><p><a href="https://rjallain.medium.com/physics-lab-assumptions-can-be-wrong-how-do-you-model-an-oscillating-mass-on-a-heavy-spring-7fd518e813d7?sk=0f0fd830d035b53fcd70777ea8f94772" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">rjallain.medium.com/physics-la</span><span class="invisible">b-assumptions-can-be-wrong-how-do-you-model-an-oscillating-mass-on-a-heavy-spring-7fd518e813d7?sk=0f0fd830d035b53fcd70777ea8f94772</span></a></p>
Kelly Lepo<p>New from NASA's Universe of Learning:</p><p>Cosmic Canvas Program Guides, creative, hands-on activities that explore observation and model making through art and science.</p><p>The free guides are designed for facilitators of all backgrounds. They include science background information, helpful links, and tips for adapting activities – no science expertise needed.</p><p>I was on the project team that created these guides, and I think they are really good. You should check them out. Links below ⬇️</p><p><a href="https://youtu.be/c1a9oCv8H6I" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">youtu.be/c1a9oCv8H6I</span><span class="invisible"></span></a></p><p><a href="https://scicomm.xyz/tags/space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>space</span></a> <a href="https://scicomm.xyz/tags/astronomy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>astronomy</span></a> <a href="https://scicomm.xyz/tags/ITeachPhysics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ITeachPhysics</span></a> <a href="https://scicomm.xyz/tags/ITeachAstronomy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ITeachAstronomy</span></a></p>
phyphox project<p>Create your own menu entries or customise the default experiments to suit your needs? The phyphox web editor has been updated to support the app version 1.2.0.</p><p><a href="https://phyphox.org/editor/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">phyphox.org/editor/</span><span class="invisible"></span></a></p><p>There are some substantial changes under the hood. Most of the teething problems should be eliminated now. Please report back if you spot something weird.</p><p><a href="https://bildung.social/tags/ITeachPhysics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ITeachPhysics</span></a> <a href="https://bildung.social/tags/MINTEdu" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MINTEdu</span></a> <a href="https://bildung.social/tags/PhysikEdu" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PhysikEdu</span></a></p>
lutz_<p><a href="https://bildung.social/tags/FediLZ" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FediLZ</span></a> <a href="https://bildung.social/tags/BlueLZ" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BlueLZ</span></a> <a href="https://bildung.social/tags/PhysikEdu" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PhysikEdu</span></a> <a href="https://bildung.social/tags/Physik" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Physik</span></a> <a href="https://bildung.social/tags/MintEdu" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MintEdu</span></a> <a href="https://bildung.social/tags/iteachphysics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>iteachphysics</span></a> <a href="https://bildung.social/tags/Weltraum" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Weltraum</span></a> <a href="https://bildung.social/tags/Sonne" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Sonne</span></a> <a href="https://bildung.social/tags/space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>space</span></a> <a href="https://bildung.social/tags/FediEltern" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FediEltern</span></a></p><p>Welche Farbe hat die Sonne?</p><p>Die Erklärvideos auf dem <a href="https://bildung.social/tags/YouTube" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>YouTube</span></a> Kanal von Martin Apolin sind wirklich hervorragend gemacht. Und beim letzten Satz im folgenden Video musste ich tatsächlich laut lachen. Denn dieses Argument leuchtet nun wirklich auch kleinen Kindern ein:</p><p>Eine gelbe Sonne sieht auf weißem Papier einfach viel besser aus…</p><p>;-)</p><p><a href="https://youtu.be/Y171qbJ5tJQ?si=EpzYjBM13Ttt5MHw" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">youtu.be/Y171qbJ5tJQ?si=EpzYjB</span><span class="invisible">M13Ttt5MHw</span></a></p>
Rhett Allain<p>Since I was complaining about the OpenStax <a href="https://mastodon.social/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a> chapter on energy - I wrote my own version. Here's my first draft. <a href="https://mastodon.social/tags/iteachphysics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>iteachphysics</span></a> </p><p><a href="https://rhettallain.com/2025/07/20/algebra-based-physics-chapter-work-energy/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">rhettallain.com/2025/07/20/alg</span><span class="invisible">ebra-based-physics-chapter-work-energy/</span></a></p>
Rhett Allain<p>I think the concept of <a href="https://mastodon.social/tags/workenergy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>workenergy</span></a> is one that many textbooks mess up. Here is my summary video <a href="https://mastodon.social/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a> <a href="https://mastodon.social/tags/iteachphysics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>iteachphysics</span></a> </p><p><a href="https://youtu.be/aDUnFKV3Q5A" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">youtu.be/aDUnFKV3Q5A</span><span class="invisible"></span></a></p>
lutz_<p><a href="https://bildung.social/tags/FediLZ" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FediLZ</span></a> <a href="https://bildung.social/tags/BlueLZ" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BlueLZ</span></a> <a href="https://bildung.social/tags/PhysikEdu" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PhysikEdu</span></a> <a href="https://bildung.social/tags/MintEudu" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MintEudu</span></a> <a href="https://bildung.social/tags/Physik" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Physik</span></a> <a href="https://bildung.social/tags/iteachphysics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>iteachphysics</span></a> </p><p>Spannende Zeitrafferaufnahme…</p><p>Hier werden die Fixsterne festgehalten und die Erde rotiert "unter dem Sternenhimmel" hindurch. Dadurch entsteht ein interessanter Perspektivwechsel.</p><p>So kann man sich die Rotation der Erde um die eigene Achse gut vorstellen.</p><p>Quelle: <a href="https://youtu.be/t78tWkbCETc?si=jo4wfaLYI8nZro8y" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">youtu.be/t78tWkbCETc?si=jo4wfa</span><span class="invisible">LYI8nZro8y</span></a></p>
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lutz_

@electricfusionQ #FediLZ #BlueLZ #Physik #PhysikEdu #Physik #iteachphysics

Ah, dann habe ich Deine Frage erst jetzt richtig verstanden.

Bei der im Video verwendeten Frequenz 3,4 kHz = 3400 Hz beträgt die Wellenlänge

\lambda = c/f = 340 m/s / 3400 Hz = 0,10 m = 10 cm.

Also müssten der untere und der obere Kopfhörer wahlweise 5 cm, 15 cm oder 25 cm voneinander entfernt sein, damit sich die beiden Schallwellen auslöschen (destruktive Interferenz)…

lutz_

#FediLZ #BlueLZ #PhysikEdu #MintEudu #Physik #iteachphysics

Eindrucksvolles Experiment zur destruktiven Interferenz gleichlaufender Wellen.

Ein Ohrhörer liegt im Inneren der Küchenrolle auf dem Tisch. Der zweite Ohrhörer wird von oben in die Rolle hinabgelassen. Am manchen Stellen löschen sich die beiden Schallwellen gegenseitig nahezu vollständig aus.

Mr. Spock würde sagen: „Faszinierend…!“

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