Asas Black
Quiz
•
Physics
•
7th Grade
•
Practice Problem
•
Easy
Kelompok 1 IPA Game
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5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
15 mins • 20 pts
Jika 75 kg air yang suhunya 0°C dicampur dengan 50 kg air yang suhunya 100°C, maka suhu akhir campuran itu adalah..
5°C
10°C
30°C
50°C
2.
MULTIPLE CHOICE QUESTION
15 mins • 20 pts
Ibu mencampur 2 kg air yang suhunya 100°C dengan 5 kg air yang suhunya 30°C . Berapa suhu akhir campuran.... (kalor jenis air 4200 J/kg°C )
35°C
40°C
15°C
100°C
3.
MULTIPLE CHOICE QUESTION
15 mins • 20 pts
Sebanyak 300 gram air dipanaskan dari 30°C menjadi 50°C. Jika massa jenis air adalah 1 kal/g°C atau 4.200 J/kgK, tentukan banyaknya kalor yang diterima air tersebut (dalam kalori).
6.000 kal
120 kal
50 kal
1.000 kal
4.
MULTIPLE CHOICE QUESTION
15 mins • 20 pts
Sebanyak 300 gram air dipanaskan dari 30°C menjadi 50°C. Jika massa jenis air adalah 1 kal/g°C atau 4.200 J/kgK, tentukan banyaknya kalor yang diterima air tersebut (dalam joule).
540 joule
25.200 joule
252 joule
500 joule
5.
MULTIPLE CHOICE QUESTION
15 mins • 20 pts
Sebuah kalorimeter yang kapasitas kalornya 40 kal/oC berisi 200 gram air suhunya 20oC akan dipakai untuk menentukan kalor jenis kuningan. Ke dalam kalorimeter dimasukkan 100 gram kuningan yang bersuhu 80oC. Jika suhu akhir air 22oC dan kalor jenis air 1 kal/goC, berapakah kalor jenis kuningan?
0,003 kal/g°c
0,12 kal/g°c
0,082 kal/g°c
0,042 kal/g°c
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