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      <title>The Physics of Roller Coasters by </title>
      <link>https://padlet.com/sarahkayna/sarahmoua</link>
      <description>I love roller coasters but if I had to dislike one thing about them it would be dramatic drops. </description>
      <language>en-us</language>
      <pubDate>2014-04-07 18:51:40 UTC</pubDate>
      <lastBuildDate>2023-06-03 03:35:26 UTC</lastBuildDate>
      <webMaster>hello@padlet.com</webMaster>
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      <item>
         <title>Acceleration&amp;nbsp;</title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/25583043</link>
         <description><![CDATA[<p>Increase in the rate or speed of something </p>]]></description>
         <enclosure url="" />
         <pubDate>2014-04-08 20:20:48 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/25583043</guid>
      </item>
      <item>
         <title>Centripetal force&amp;nbsp;</title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/25583368</link>
         <description><![CDATA[<p><span style="white-space: normal; -webkit-text-size-adjust: 100%; background-color: rgba(255, 255, 255, 0);"><span id="hotword" style="font-style: normal; font-variant: normal;"><span id="hotword" class="hwc" name="hotword">the</span>&nbsp;force</span><span id="hotword" style="font-style: normal; font-variant: normal;">&nbsp;that acts on a&nbsp;<span id="hotword" class="hwc" name="hotword">body</span>&nbsp;<span id="hotword" class="hwc" name="hotword">moving</span>&nbsp;<span id="hotword" class="hwc" name="hotword">along</span>&nbsp;<span id="hotword" class="hwc" name="hotword">a</span>&nbsp;<span id="hotword" class="hwc" name="hotword">curved</span>&nbsp;<span id="hotword" class="hwc" name="hotword">path,</span>&nbsp;<span id="hotword" class="hwc" name="hotword">that</span>&nbsp;is directed&nbsp;<span id="hotword" class="hwc" name="hotword">toward</span>&nbsp;<span id="hotword" class="hwc" name="hotword">the</span>&nbsp;<span id="hotword" class="hwc" name="hotword">center</span>&nbsp;<span id="hotword" class="hwc" name="hotword">of</span>&nbsp;&nbsp;<span id="hotword" class="hwc" name="hotword">of</span>&nbsp;<span id="hotword" class="hwc" name="hotword">the</span>&nbsp;<span id="hotword" class="hwc" name="hotword">path</span><span id="hotword" class="hwc" name="hotword">.</span></span></span></p>]]></description>
         <enclosure url="" />
         <pubDate>2014-04-08 20:24:32 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/25583368</guid>
      </item>
      <item>
         <title>Centrifugal force&amp;nbsp;</title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/25583587</link>
         <description><![CDATA[<p><div class="kno-card" style="margin-left: 24px; color: rgb(34, 34, 34); font-family: HelveticaNeue, Arial, sans-serif; font-size: 15px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); -webkit-composition-fill-color: rgba(175, 192, 227, 0.235294); -webkit-text-size-adjust: none; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);"><li class="mod" style="margin: 0px; padding: 0px; border: 0px; line-height: 1.24; list-style: none; clear: none;"></li></div><div class="kno-card" style="margin-left: 24px; color: rgb(34, 34, 34); font-family: HelveticaNeue, Arial, sans-serif; font-size: 15px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); -webkit-composition-fill-color: rgba(175, 192, 227, 0.235294); -webkit-text-size-adjust: none; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);"><li class="mod" style="margin: 0px; padding: 0px; border: 0px; line-height: 1.24; list-style: none; clear: none;"></li></div></p><div class="kno-card" style="margin-left: 24px; color: rgb(34, 34, 34); font-family: HelveticaNeue, Arial, sans-serif; font-size: 15px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); -webkit-composition-fill-color: rgba(175, 192, 227, 0.235294); -webkit-text-size-adjust: none; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);"><li class="mod" style="margin: 0px; padding: 0px; border: 0px; line-height: 1.24; list-style: none; clear: none;"><div class="_Fp kno-fb-ctx" data-hveid="42" data-ved="0CCoQziAoADAB" style="overflow: hidden; margin: 10px 24px 0px 0px; padding-bottom: 18px;"><div class="kno-rdesc"><span>the apparent force that draws a rotating body away from the center of rotation. It is caused by the inertia of the body</span></div></div></li></div>]]></description>
         <enclosure url="" />
         <pubDate>2014-04-08 20:27:12 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/25583587</guid>
      </item>
      <item>
         <title>DEFINITIONS&amp;nbsp;</title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/25583778</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2014-04-08 20:30:05 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/25583778</guid>
      </item>
      <item>
         <title>G force&amp;nbsp;</title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/25584051</link>
         <description><![CDATA[<p>A unit of acceleration equal to the acceleration caused by gravity </p>]]></description>
         <enclosure url="" />
         <pubDate>2014-04-08 20:33:20 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/25584051</guid>
      </item>
      <item>
         <title>Momentum&amp;nbsp;</title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/25584310</link>
         <description><![CDATA[<p>The quantity of motion of a moving body </p>]]></description>
         <enclosure url="" />
         <pubDate>2014-04-08 20:36:26 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/25584310</guid>
      </item>
      <item>
         <title>Weightlessness</title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/25584462</link>
         <description><![CDATA[<p>To be without apparent weight and to free fall as a body </p>]]></description>
         <enclosure url="" />
         <pubDate>2014-04-08 20:38:22 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/25584462</guid>
      </item>
      <item>
         <title>How Is It Related?&amp;nbsp;</title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/25584593</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2014-04-08 20:40:05 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/25584593</guid>
      </item>
      <item>
         <title></title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/25584728</link>
         <description><![CDATA[<p>All of these forces of physics all have very much to do with the making and works of roller coasters. The structure of many roller coasters have narrow tracks, deep drops, loops, and the ability of going upside down. Acceleration helps increase the speed of the roller coaster when running on the track, making it hard to fall off.  The two forces centripetal and centrifugal both have very big parts in roller coasters. Centripetal force helps with sharp turns and curves while Centrifugal force helps with loops in the track. G force would help pull you down while an acceleration force would help push you up, they both work together in a way.  The force momentum helps with thanking of movement that would take place on the cart while it is running on the tracks. Weightlessness occurs when there is no apparent weight that can occur on the cart. Acceleration force, weight, and gravity weight all work with each other when a cart is about to go into a loop. The weight and acceleration force are pushing down on the track while the gravity weight is pushing up. </p>]]></description>
         <enclosure url="" />
         <pubDate>2014-04-08 20:42:02 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/25584728</guid>
      </item>
      <item>
         <title>Math Energy</title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/25985619</link>
         <description><![CDATA[]]></description>
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         <pubDate>2014-04-14 18:41:51 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/25985619</guid>
      </item>
      <item>
         <title>What is friction, and how does it relate?&amp;nbsp;</title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/25986720</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2014-04-14 18:52:53 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/25986720</guid>
      </item>
      <item>
         <title></title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/25986791</link>
         <description><![CDATA[<p>Friction is the outcome of what happens when two objects encounter each other on their surface. In a roller coaster, friction plays the part of slowing down the cart, friction is also why sometimes the track would get smaller.</p>]]></description>
         <enclosure url="" />
         <pubDate>2014-04-14 18:53:45 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/25986791</guid>
      </item>
      <item>
         <title>What is energy?</title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/25987040</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2014-04-14 18:56:19 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/25987040</guid>
      </item>
      <item>
         <title></title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/25987158</link>
         <description><![CDATA[<p>Energy is a property of objects, and can be transferred among fundamental objects.  It is the strength needed for one to obtain physical or mental activity.</p>]]></description>
         <enclosure url="" />
         <pubDate>2014-04-14 18:57:32 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/25987158</guid>
      </item>
      <item>
         <title>What is energy measured in?&amp;nbsp;</title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/25988244</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2014-04-14 19:09:00 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/25988244</guid>
      </item>
      <item>
         <title></title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/25988503</link>
         <description><![CDATA[<p>Energy is measured in joule. Named after James Precott Joule and his scientific experiments.  </p>]]></description>
         <enclosure url="" />
         <pubDate>2014-04-14 19:11:56 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/25988503</guid>
      </item>
      <item>
         <title>Where it all started</title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/26006562</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2014-04-15 01:47:49 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/26006562</guid>
      </item>
      <item>
         <title></title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/26009298</link>
         <description><![CDATA[<p>It goes all the way back to Russia in the 15th century. Originally they were first made out of hills of ice and the slides were built 70-80 feet high. They had 50 degree drops with reinforced wooden support systems.&nbsp;A group full&nbsp;of historians believe that roller coasters were first built in France though, and soon other countries and places caught on.&nbsp;</p>]]></description>
         <enclosure url="" />
         <pubDate>2014-04-15 02:49:12 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/26009298</guid>
      </item>
      <item>
         <title>Famous for what?</title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/26010670</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2014-04-15 03:23:08 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/26010670</guid>
      </item>
      <item>
         <title></title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/26010825</link>
         <description><![CDATA[<p>Believe it or not but America has some of the world wide breaking records for roller coasters. Kingda Ka found at Six Flags Great Adventure takes first place for tallest steel roller coaster at 456 ft! It also ranks at number one for longest steel roller coaster drop with 418 ft! </p>]]></description>
         <enclosure url="" />
         <pubDate>2014-04-15 03:26:26 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/26010825</guid>
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      <item>
         <title>Horse Shoe</title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/26011366</link>
         <description><![CDATA[]]></description>
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         <pubDate>2014-04-15 03:38:57 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/26011366</guid>
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      <item>
         <title>Famous Elements -&amp;gt;</title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/26011459</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2014-04-15 03:40:43 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/26011459</guid>
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      <item>
         <title>Raven Turn</title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/26011514</link>
         <description><![CDATA[]]></description>
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         <pubDate>2014-04-15 03:42:06 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/26011514</guid>
      </item>
      <item>
         <title>Sea Serpent Roll</title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/26011546</link>
         <description><![CDATA[]]></description>
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         <pubDate>2014-04-15 03:42:50 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/26011546</guid>
      </item>
      <item>
         <title>How is that possible?</title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/26011920</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2014-04-15 03:54:05 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/26011920</guid>
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      <item>
         <title></title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/26012387</link>
         <description><![CDATA[<p>If a roller coaster only uses an engine in the beginning how can it still continue to move without it? Well, the two major parts that take place into making that happen is kinetic energy and potential energy. If the cart of the roller coaster was about to go down a large or steep drop then the kinetic energy would result as potential energy. The kinetic energy helps move the cart along the path and through curves and loops</p>]]></description>
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         <pubDate>2014-04-15 04:05:33 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/26012387</guid>
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      <item>
         <title>Our Roller Coaster</title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/26013425</link>
         <description><![CDATA[<p>We named it "Daranna's Le Flame O' Coaster". In total it was 100 cm from the top to the ground. The total length&nbsp; was 7.4 and the total time that it took to complete was five seconds. </p>]]></description>
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         <pubDate>2014-04-15 04:30:54 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/26013425</guid>
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      <item>
         <title>Cobra Roll</title>
         <author>sarahkayna</author>
         <link>https://padlet.com/sarahkayna/sarahmoua/wish/26013815</link>
         <description><![CDATA[]]></description>
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         <pubDate>2014-04-15 04:37:55 UTC</pubDate>
         <guid>https://padlet.com/sarahkayna/sarahmoua/wish/26013815</guid>
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