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      <title>P1 - FÍSICA by GABRIELLA LIMA SANTOS</title>
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      <description>Última p1 de física</description>
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      <pubDate>2021-09-28 22:54:14 UTC</pubDate>
      <lastBuildDate>2024-10-14 09:50:26 UTC</lastBuildDate>
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         <title>Por propriedade magnética se entende a capacidade que um objeto tem de atrair outros objetos e também a possibilidade de repulsão entre eles.</title>
         <author>783986</author>
         <link>https://padlet.com/783986/ta8b8qaz79bma6ds/wish/1776129099</link>
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         <pubDate>2021-09-28 23:03:28 UTC</pubDate>
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         <title>Os materiais que naturalmente apresentam propriedades magnéticas são chamados de ímãs.</title>
         <author>783986</author>
         <link>https://padlet.com/783986/ta8b8qaz79bma6ds/wish/1776130589</link>
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         <pubDate>2021-09-28 23:04:35 UTC</pubDate>
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         <title>Existem dois polos diferentes no material. A esses polos se dão os nomes de polo norte e sul. Polos de mesmo tipo se repelem e polos de tipos opostos se atraem.</title>
         <author>783986</author>
         <link>https://padlet.com/783986/ta8b8qaz79bma6ds/wish/1776178947</link>
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         <pubDate>2021-09-28 23:41:23 UTC</pubDate>
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         <title></title>
         <author>783986</author>
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         <pubDate>2021-09-28 23:42:58 UTC</pubDate>
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         <title>Caso as direções permanecerem desalinhados, apontando em direções aleatórias, há um cancelamento geral dos efeitos dos dipolos e o material não apresenta nenhuma propriedade magnética.</title>
         <author>783986</author>
         <link>https://padlet.com/783986/ta8b8qaz79bma6ds/wish/1776185501</link>
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         <pubDate>2021-09-28 23:45:42 UTC</pubDate>
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         <title>No caso dos dipolos estarem todos alinhados, temos um material chamado ferromagnético permanente (ímã natural).</title>
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         <pubDate>2021-09-28 23:46:02 UTC</pubDate>
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         <title>Exemplos:</title>
         <author>783986</author>
         <link>https://padlet.com/783986/ta8b8qaz79bma6ds/wish/1776195924</link>
         <description><![CDATA[<div>O ferro, o níquel e o cobalto são alguns exemplos de materiais ferromagnéticos.<br><br></div>]]></description>
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         <pubDate>2021-09-28 23:52:15 UTC</pubDate>
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         <title></title>
         <author>783986</author>
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         <pubDate>2021-09-28 23:58:29 UTC</pubDate>
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         <title></title>
         <author>783986</author>
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         <pubDate>2021-09-28 23:58:40 UTC</pubDate>
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         <title></title>
         <author>783986</author>
         <link>https://padlet.com/783986/ta8b8qaz79bma6ds/wish/1776209741</link>
         <description><![CDATA[<div>Esses materiais se magnetizam fortemente se colocados na presença de um campo magnético. A existência de um material ferromagnético altera fortemente o valor da intensidade do campo magnético.<br>As substâncias ferromagnéticas são fortemente atraídas pelos ímãs.</div>]]></description>
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         <pubDate>2021-09-29 00:00:27 UTC</pubDate>
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         <title></title>
         <author>783986</author>
         <link>https://padlet.com/783986/ta8b8qaz79bma6ds/wish/1776218996</link>
         <description><![CDATA[<div>Com todos os seus dipolos magnéticos alinhados, o ferromagnético, para todos os efeitos comporta-se como um ímã natural. O resultado final é que o material ferromagnético é atraído pelo ímã natural.&nbsp;</div>]]></description>
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         <pubDate>2021-09-29 00:05:41 UTC</pubDate>
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         <title></title>
         <author>783986</author>
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         <pubDate>2021-09-29 00:07:25 UTC</pubDate>
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         <title></title>
         <author>783986</author>
         <link>https://padlet.com/783986/ta8b8qaz79bma6ds/wish/1776228968</link>
         <description><![CDATA[<div>É parecido com o ferromagnético, porém a intensidade é aproximadamente 1000 vezes menor. O resultado final é que o material paramagnético é muito fracamente atraído pelo ímã natural. </div>]]></description>
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         <pubDate>2021-09-29 00:11:23 UTC</pubDate>
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         <title>Exemplos:</title>
         <author>783986</author>
         <link>https://padlet.com/783986/ta8b8qaz79bma6ds/wish/1776229342</link>
         <description><![CDATA[<div>O vidro, o alumínio, platina, magnésio e o sulfato de cobre são alguns exemplos de materiais paramagnéticos.<br><br></div>]]></description>
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         <pubDate>2021-09-29 00:11:37 UTC</pubDate>
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      <item>
         <title></title>
         <author>783986</author>
         <link>https://padlet.com/783986/ta8b8qaz79bma6ds/wish/1776232026</link>
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         <pubDate>2021-09-29 00:13:09 UTC</pubDate>
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      <item>
         <title></title>
         <author>783986</author>
         <link>https://padlet.com/783986/ta8b8qaz79bma6ds/wish/1776239219</link>
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         <pubDate>2021-09-29 00:16:33 UTC</pubDate>
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         <title></title>
         <author>783986</author>
         <link>https://padlet.com/783986/ta8b8qaz79bma6ds/wish/1776246660</link>
         <description><![CDATA[<div>No entanto, os materiais possuem elétrons desemparelhados e que, na presença de um campo magnético, alinham-se, fazendo surgir um ímã que provoca um leve aumento na intensidade do valor do campo magnético em um ponto qualquer.<strong>&nbsp;</strong></div>]]></description>
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         <pubDate>2021-09-29 00:20:13 UTC</pubDate>
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      <item>
         <title>Exemplos:</title>
         <author>783986</author>
         <link>https://padlet.com/783986/ta8b8qaz79bma6ds/wish/1776261297</link>
         <description><![CDATA[<div>A água, a prata, o ouro, o chumbo, o quartzo, o bismuto e o cobre são alguns exemplos de materiais diamagnéticos.<br><br></div>]]></description>
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         <pubDate>2021-09-29 00:27:11 UTC</pubDate>
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         <title></title>
         <author>783986</author>
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         <description><![CDATA[<div>O material diamagnético é repelido pelo ímã natural.&nbsp;</div>]]></description>
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         <pubDate>2021-09-29 00:29:08 UTC</pubDate>
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         <title></title>
         <author>783986</author>
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         <pubDate>2021-09-29 00:29:29 UTC</pubDate>
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         <title></title>
         <author>783986</author>
         <link>https://padlet.com/783986/ta8b8qaz79bma6ds/wish/1776291545</link>
         <description><![CDATA[<div>São materiais que, se colocados na presença de um campo magnético, têm seus ímãs orientados no sentido contrário ao sentido do campo magnético aplicado. </div>]]></description>
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         <pubDate>2021-09-29 00:40:00 UTC</pubDate>
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         <title></title>
         <author>783986</author>
         <link>https://padlet.com/783986/ta8b8qaz79bma6ds/wish/1776296213</link>
         <description><![CDATA[<div>O&nbsp;campo magnético é a região do espaço na qual se realiza a interação magnética entre dois objetos que apresentam propriedades magnéticas. E as linhas de campo são as linhas imaginárias que mapeiam o sentido deste campo em torno dos objetos. Ou seja, elas indicam a direção da atração ou repulsão magnética num ponto do espaço sob a influência de objetos magnetizados. As linhas de campo apontam do polo norte para o polo sul.</div>]]></description>
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         <pubDate>2021-09-29 00:41:52 UTC</pubDate>
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         <title>Atração</title>
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         <pubDate>2021-09-29 00:44:07 UTC</pubDate>
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         <title>Repulsão</title>
         <author>783986</author>
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         <pubDate>2021-09-29 00:44:23 UTC</pubDate>
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         <title>Imãs</title>
         <author>783986</author>
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         <pubDate>2021-09-29 00:44:44 UTC</pubDate>
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