Page 8 - QONITA KURROTUL AKYUN (D0A219009)-TUGAS 14.3 PSPI

IPA – 3.4 / 4.4 / 1 / 1.1
b. Menurut pendapatmu, apakah semua benda mengalami jenis pemuaian yang sama?
............................................................................................................................................................................
............................................................................................................................................................................
............................................................................................................................................................................
............................................................................................................................................................................
c. Bagaimanakah cara untuk menentukan ukuran akhir benda-benda tersebut setelah
dipanaskan?
............................................................................................................................................................................
............................................................................................................................................................................
............................................................................................................................................................................
............................................................................................................................................................................
3. Perhatikan gambar dua plat logam berikut ini!

a. Jika awalnya kedua plat logam memiliki ukuran yang sama, sedangkan plat logam A
memiliki koefisien muai panjang yang lebih besar daripada logam B, bagaiamanakah
ukuran kedua logam setelah dipanaskan?
............................................................................................................................................................................
............................................................................................................................................................................
............................................................................................................................................................................
............................................................................................................................................................................
b. Jika awalnya kedua plat logam memiliki ukuran yang sama, sedangkan plat logam A
memiliki koefisien muai panjang yang lebih besar daripada logam B, bagaiamanakah
ukuran kedua logam setelah didinginkan?
............................................................................................................................................................................
............................................................................................................................................................................
............................................................................................................................................................................
............................................................................................................................................................................
c. Bagaimanakah pengaruh koefisien muai panjang suatu benda terhadap kemampuan
benda untuk memuai?
............................................................................................................................................................................
............................................................................................................................................................................
............................................................................................................................................................................
............................................................................................................................................................................

Ayo berlatih!

Agar lebih memahami terkait dengan konsep pemuaian, kerjakan soal latihan berikut ini!
1. Pada suhu 20 C, panjang kawat besi adalah 20 m. Berapakah panjang kawat besi tersebut
o
pada suhu 100 C jika koefisien muai panjang besi 1,1 × 10 / C?
o
-5 o
....................................................................................................................................................................................
....................................................................................................................................................................................
....................................................................................................................................................................................
....................................................................................................................................................................................
....................................................................................................................................................................................
....................................................................................................................................................................................
2. Sebuah benda yang terbuat dari baja memiliki panjang 1000 cm. Berapakah pertambahan
panjang baja itu, jika terjadi perubahan suhu sebesar 50°C?
....................................................................................................................................................................................
....................................................................................................................................................................................
....................................................................................................................................................................................
....................................................................................................................................................................................

UKBM MTsN 1 Lumajang 7