UAS PRAKTEK KIMIA

SMK NEGERI 1 BANGKINANGJln.T.Tambusai Telp.(0762) 21310 Fax. (0762) 21310 Bangkinang

TAHUN PELAJARAN 2011/2012KELAS STUDY PROGRAM WAKTU Judul Praktikan : XII : XII TKJ2 DAN XII TKJ3 : 20 MENIT/GROUP

: Menguji Daya Hantar Listrik Padatan : 1. ....................................................... 2. ....................................................... 3. ....................................................... 4. ....................................................... 5. .......................................................

Kelas Tanggal

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I. Tujuan Kegiatan o Siswa dapat mengamati gejala-gejala hantaran listrik melalui padatan o Siswa dapat membedakan Konduktor dan Non Konduktor II. Dasar Teori Lengkapi sendiri! (cari referensi dari Buku Paket Kimia, buku kimia lainnya maupun dari internet! ) .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .................................................................................................................................. .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .................................................................................................................................. .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .................................................................................................................................. .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... ..................................................................................................................................1

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III. Alat a) Sumber arus DC ( Baterai ) b) Kabel c) Gelas Kimia d) Bola lampu e) Pengait Padatan f) Saklar Rangkaian alat penguji konduktor dab non konduktor

Gambar Rangkaian Alat Uji Konduktor dan Non Konduktor:

IV. Bahan-bahan: No 1 2 3 4 52

Nama Padatan

Jumlah

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V. Prosedur Percobaan 1) Bersihkan semua peralatan yang akan digunakan! 2) Kaitkan padatan yang akan di uji! 3) Ujilah daya hantar listriknya dengan menggunakan rangkaian alat penguji konduktor dan konduktor dengan cara mengkaitkan kedua kutub pada padatan yang akan dicoba! 4) Amati perubahan yang terjadi dan apakah lampu menyala (catat dalam tabel pengamatan)! 5) Dengan cara yang sama, ujilah daya hantar listrik zat padatan lain yang tersedia!

VI. Tabel pengamatan No 1 2 3 4 5 VII. Pertanyaan / Bahan Diskusi 1) Gejala apakah yang menandai hantaran listrik melalui padatan? 2) Kelompokkan bahan-bahan yang diuji; ke dalam konduktor dan non konduktor! 3) Apakah penyebab zat padatan yang bersifat konduktor dapat menghantarkan arus listrik? Padatan Nyala Lampu ( terang,redup,tidak menyala )

Pembahasan:......................................................................................................................................................... ......................................................................................................................................................... ......................................................................................................................................................... ......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... ................................

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VIII. Kesimpulan Berikan kesimpulan berdasarkan data dan pengamatan yang telah kalian lakukan! ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... ..........................................

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