EXP-05.odt - Universidade Federal de Santa Catarina Campus...

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Universidade Federal de Santa Catarina Campus de Blumenau Física Experimental I – Turma 02753B Prof. Dr. Lucas Natálio Chavero EXPERIMENTO 05 – Lei de Hooke Alunos: Eric Lorenzo Guilherme Zarur Luana Giese Blumenau, Novembro/2015
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Tratamento de dados e discussão 1. Apresente as tabelas e os gráficos da deformação das molas em função das massas suspensas para os três procedimentos experimentais. Procedimento Experimental 1 (mola única) Massa (kg) +/- 0,00005 kg Posição (m) +/- 0,001 m 0.02500 0.000 0.04500 0.028 0.05500 0.045 0.06500 0.059 0.07500 0.074 Procedimento Experimental 2 (duas molas em série) Massa (kg) +/- 0,00005 kg Posição (m) +/- 0,001 m 0.02500 0.000 0.04500 0.060 0.05500 0.091 0.06500 0.121 0.07500 0.155
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Procedimento Experimental 3 (duas molas em paralelo) Massa (kg) +/- 0,00005 kg Posição (m) +/- 0,001 m 0.05500 0.000 0.07500 0.014 0.09500 0.030 0.11500 0.046 0.13500 0.062
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2. Determine, a partir do gráfico anterior, a constante elástica da mola única. Aplicando a Segunda Lei de Newton ao ajuste experimental, sabendo que atuamos dentro do regime da Lei de Hooke e que portanto a força elástica é uma força restauradora, temos que: m.g – k.x = 0 m.g = k.x x = m . g k Sabendo que m é a variável independente, os coeficientes angulares dos gráficos de
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