menghitung kalor
Authored by Natalia Natalia
Science
7th Grade
Used 12+ times
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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Jika air dingin dicampur dengan air panas maka akan terjadi peristiwa ...
air dingin dan air panas sama-sama melepas kalor
air dingin melepas kalor dan air panas menerima kalor
air dingin dan air panas menerima kalor
air dingin menerima kalor dan air panas melepas kalor
2.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Kalor adalah suatu bentuk energi yang secara alamiah dapat berpindah dari benda yang bersuhu ….
tinggi ke rendah
rendah ke tinggi
sama suhunya
tetap
3.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Berikut ini rumus tentang kalor kecuali....
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sebanyak 250 g air dipanaskan dari suhu 20oC menjadi 60oC. Bila kalor jenis air 4200 J/kgoC, maka kalor yang diperlukan adalah ….
A. 16.800 J
B. 21.000 J
C. 33.600 J
D. 42.000 J
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Untuk memanaskan 150 gram air (c= 1 kal/goC) agar suhunya naik 120oC diperlukan kalor sebesar ...
158 kalori
1.240 kalori
1.800 kalori
18.000 kalori
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Besi bermassa 10 kg dinaikkan suhunya dari 2oC menjadi 12oC, ternyata kalor yang dibutuhkan sebesar 111 kkal. Kalor jenis besi tersebut sebesar ...
0,11 kkal/kgoC
1,1 kkal/kgoC
110 kkal/kgoC
1.100 kkal/kgoC
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Air sebanyak 0,2 kg bersuhu 25oC dipanaskan dengan kalor sebesar 42.000 Joule. Bila kalor jenis air = 4200 J/kg oC, maka besar suhu akhir air adalah…..
A. 100oC
B. 80oC
C. 75oC
D. 50oC
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