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Eletroscópio de Folhas
Objetivos: Identificar os corpos que estão eletrizados e os que não estão eletrizados.
Materiais necessários:
1 vidro transparente
Um pedaço de isopor
20cm de fio de cobre
Uma folha de papel alumínio de 30 cm X 20cm
Fita adesiva
Régua de plástico
Rolha
Um pedaço de tecido de lã
Um pedaço de tecido de seda
Um pedaço de tecido jeans
Montagem
O fio de cobre deve ser desencapado ( retirar a capa de plástico ).
Cortar o isopor da medida da boca do vidro sendo que ele encaixe bem apertado.
Cortar dois pedaços do papel alumínio medindo 1,5cm x 5cm
Fazer um furo em cada uma das extremidades dos pedaço de papel alumínio( suficiente para passar com
folga o fio de cobre.
Entortar uma das pontas do fio de cobre em formato de um J, pendurar os dois pedaços de papel
alumínio.
Com a outra extremidade do fio perfurar o pedaço de isopor bem no centro.
Fechar o vidro com a tampa feita de isopor e o fio de cobre com os pedaços de alumíniopendurados
dentro.
Regular a altura de acordo com o tamanho do vidro de modo que os pedaços de alumínio não encostem no
fundo do vidro.
Na parte superior do isopor deixar cerca de 7 cm do fio.
Fixar com fita adesiva o fio no isopor para que ele não se movimente.
Na extremidade que ficou fora do vidro fazer uma bolinha de papel alumínio e colocar ela na ponta do fio.
Está pronto nosso eletroscópio de folhas.

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Eletroscópio Folhas Identificar Corpos Eletrizados

  • 1. Eletroscópio de Folhas Objetivos: Identificar os corpos que estão eletrizados e os que não estão eletrizados. Materiais necessários: 1 vidro transparente Um pedaço de isopor 20cm de fio de cobre Uma folha de papel alumínio de 30 cm X 20cm Fita adesiva Régua de plástico Rolha Um pedaço de tecido de lã Um pedaço de tecido de seda Um pedaço de tecido jeans Montagem O fio de cobre deve ser desencapado ( retirar a capa de plástico ). Cortar o isopor da medida da boca do vidro sendo que ele encaixe bem apertado. Cortar dois pedaços do papel alumínio medindo 1,5cm x 5cm Fazer um furo em cada uma das extremidades dos pedaço de papel alumínio( suficiente para passar com folga o fio de cobre. Entortar uma das pontas do fio de cobre em formato de um J, pendurar os dois pedaços de papel alumínio. Com a outra extremidade do fio perfurar o pedaço de isopor bem no centro. Fechar o vidro com a tampa feita de isopor e o fio de cobre com os pedaços de alumíniopendurados dentro. Regular a altura de acordo com o tamanho do vidro de modo que os pedaços de alumínio não encostem no fundo do vidro. Na parte superior do isopor deixar cerca de 7 cm do fio. Fixar com fita adesiva o fio no isopor para que ele não se movimente. Na extremidade que ficou fora do vidro fazer uma bolinha de papel alumínio e colocar ela na ponta do fio. Está pronto nosso eletroscópio de folhas.