Kalor 7 smp
Authored by Bimbel BRAINY
Physics
7th Grade
Used 50+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Air sebanyak 0,2 kg bersuhu 25oC dipanaskan dengan kalor sebesar 42.000 joule. Bila kalor jenis air 4.200 J/KgoC, maka besar suhu akhir adalah ....
100oC
80oC
75oC
50oC
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
1 Kalori =......Joule
4,2
42
4200
0,42
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Berikut ini rumus tentang kalor kecuali....
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
rumus tersebut merupakan rumus kalor laten ....
penguapan
pengembunan
penyubliman
pencairan
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
rumus tersebut untuk menghitung energi kalor benda pada saat...
mencair
menyublim
menguap
membeku
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Besar kalor yang diperlukan untuk menaikkan suhu sebatang besi yang massanya 10 kg dari 20oC menjadi 100oC adalah ...
(jika kalor jenis besi 450 J/kgoC)
36 KJ
260 KJ
460 KJ
360 KJ
7.
MULTIPLE CHOICE QUESTION
5 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
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