
Quiz Pemuaian dan Perpindahan Kalor
Quiz
•
Physics
•
11th Grade
•
Hard
Hanif H
Used 1+ times
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pilihan di bawah ini yang bukan termasuk contoh dari perpindahan panas secara radiasi, adalah ...
A. Orang-orang yang merasa hangat di sekitar api unggun
B. Air panas yang mendidih
C. Cahaya matahari sampai ke bumi
D. Panas api lilin yang terasa di dekatnya
E. Orang berada dekat lampu bohlam
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Tiga batang logam A, B, dan C dengan ukuran sama, tetapi jenis logam berbeda (gambar). Ujung logam C bersuhu 90°C, sedangkan ujung logam A dan B masing-masing bersuhu 0°C dan 10°C Jika koefisien konduksi termal A dan B masing-masing 2 kali dan 3 kali koefisien konduksi termal C. suhu pada persambungan ketiganya sebesar ....
40°C
25°C
15°C
30°C
20°C
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sebatang logam dipanaskan sehingga suhunya 80°C panjangnya menjadi 115 cm. Jika koefisien muai panjang logam 3.10^-3/°C dan suhu mula-mula logam 30°C, maka panjang logam mula-mula adalah ...
A.100 cm
B.101,5 cm
C.102 cm
D.102,5 cm
E.103 cm
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Pada suhu 30°C sebuah pelat besi luasnya 10 m^2 . Apabila suhunya dinaikkan menjadi 90°C dan koefisien muai panjang besi sebesar 1,2 x 10^-5/°C, maka tentukan luas pelat besi setelah pemuaian?
A.10,534 m^2
B.11,512 m^2
C.10,212 m^2
D.10,014 m^2
E.10,312 m^2
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sebuah bola besi berjari-jari 7 cm (alpha = 1,2 x 10^-5/°C) dipanaskan dari suhu 25°C sampai 75°C, tentukan pemuaian volumenya (∆V) !
A. 2,034 cm^3
B. 445,2 cm^3
C. 2,587 cm^3
D.702,5 cm^3
E.303 cm^3
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Nabila sedang memanaskan air diwajan, ketika wajan dipanaskan beberapa saat kemudian terjadi gelembung di air yang bergerak keatas, karena....
A. Massa jenisnya membesar
B. Adanya dorongan dari kalor
C. Massa jenisnya berkurang
D. Adanya desakan dari bawah
E. Salah semua
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Benda hitam memiliki konstanta emisi 1, memiliki suhu 400 K memancarkan radiasi setiap detik. Berapa energi radiasi benda hitam adalah ....
(σ = 5,67×10‾⁸ W/m²K⁴)
A.1451,5 J
B.1400 J
C.1251,5 J
D.1200 J
E.951,5 J
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