Page 7 - QONITA KURROTUL AKYUN (D0A219009)-TUGAS 14.3 PSPI
P. 7
IPA – 3.4 / 4.4 / 1 / 1.1
Kedua gambar menunjukkan adanya fenomena pemanfaatan pemuaian dalam
kehidupan sehari-hari. Akan tetapi bagaimana bisa terjadi pemuaian ? adakah
pemuaian yang merugikan bagi manusia?
Agar lebih memahami materi terkait dengan proses pemuaian, bacalah buku teks pelajaran
(BTP): IPA FISIKA untuk SMP/ MTs Kelas VII . Jakarta: Erlangga hal. 150 s.d. 164.
Kemudian kalian mengerjakan aktivitas berikut
1. Perhatikan gambar berikut!
Gb1. Pemasangan kaca jendela
http://www.fenstal.co.id/double-
galzed-pada-kusen-aluminium/
Gambar tersebut merupakan cara pemasangan kaca jendela pada kusennya. Jika diperhatikan
lebih seksama ternyata cara memasangnya longgar tidak mepet.
a. Mengapa pemasangan kacanya longgar? Bagaimana jika tidak diberikan kelonggaran?
............................................................................................................................................................................
............................................................................................................................................................................
............................................................................................................................................................................
............................................................................................................................................................................
b. Menurut pendapat kamu, bagaimana ukuran kaca tersebut pada siang hari?
............................................................................................................................................................................
............................................................................................................................................................................
............................................................................................................................................................................
c. Carilah di lingkungan sekitarmu terkait dengan fenomena yang mirip dengan fenomena di
atas!
............................................................................................................................................................................
............................................................................................................................................................................
............................................................................................................................................................................
............................................................................................................................................................................
............................................................................................................................................................................
............................................................................................................................................................................
2. Perhatikan gambar berikut!
a. Gambarkan bentuk benda-benda di atas, jika semuanya dipanaskan secara bersamaan!
............................................................................................................................................................................
............................................................................................................................................................................
............................................................................................................................................................................
............................................................................................................................................................................
............................................................................................................................................................................
............................................................................................................................................................................
............................................................................................................................................................................
UKBM MTsN 1 Lumajang 6
