https://demosdev.physique.uottawa.ca/w/index.php?action=history&feed=atom&title=Ball_and_ring 2026-04-07T19:41:26Z Historique des révisions pour cette page sur le wiki MediaWiki 1.34.1 https://demosdev.physique.uottawa.ca/w/index.php?title=Ball_and_ring&diff=1024&oldid=prev 2018-03-20T20:53:21Z

<p></p> <table class="diff diff-contentalign-left" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="fr"> <td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← Version précédente</td> <td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Version du 20 mars 2018 à 20:53</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l14" >Ligne 14 :</td> <td colspan="2" class="diff-lineno">Ligne 14 :</td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Keywords==</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Keywords==</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>ring, ball, thermal expansion, temperature.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>ring, ball, thermal expansion, temperature.</div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">==Images &amp; Movies==</ins></div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">{{#widget:YouTube|id=2Xp51Qe9xXo}}</ins></div></td></tr> </table>

Ljacques https://demosdev.physique.uottawa.ca/w/index.php?title=Ball_and_ring&diff=721&oldid=prev 2017-10-06T19:47:06Z

<p>Created page with &quot;__NOTOC__ Back to <a href="/wiki/4A_-_Thermal_properties_of_matter" title="4A - Thermal properties of matter">4A - Thermal properties of matter</a>&lt;br&gt; PIRA index: 4A30.20 ==Description== A metal ball has a diameter barely small eno...&quot;</p> <p><b>Nouvelle page</b></p><div>__NOTOC__<br /> Back to [[4A - Thermal properties of matter|4A - Thermal properties of matter]]&lt;br&gt;<br /> PIRA index: 4A30.20<br /> <br /> ==Description==<br /> A metal ball has a diameter barely small enough to go through a ring at room temperature. When heated, the ball is too big to fit in the ring. One version of this demo has the ball resting on the ring and will eventually go through when its temperature is low enough.<br /> <br /> ==Equipment==<br /> * A matching ball and ring set <br /> <br /> ==Instructions==<br /> With all the objects at room temperature, show that the ball can go through the ring. Heat the ball. Show that ball is unable to go through the same hole. One version of this demo allows you to leave the ball on the ring (while you continue with the lecture), it will take a few minute to cool down enough to let the ball through. <br /> <br /> ==Keywords==<br /> ring, ball, thermal expansion, temperature.</div>

Ljacques