science grade 9th
Quiz
•
Science
•
9th Grade
•
Practice Problem
•
Easy
Azwar Azwar
Used 1+ times
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
manakah gambar berikut ini yang termasuk isolator?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
perpindahan panas atau energi malalui kontak langsung antara partikel-partikel yang berdekatan disebut
radiasi
bad konduktor
konveksi
konduksi
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
sebuah kawat baja dengan panjang awal 50 cm setelah dipanaskan, panjangnya menjadi 50,00275 cm. jika suhu awal kawat adalah 25oC. berapa suhu akhir kawat tersebut... (αbaja: 0,000011/oC)
35 oC
60 oC
30 oC
78 oC
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
sebuah batang aluminium memiliki panjang awal 2 m pada suhu 20oC. jika batang tersebut dinaikan menjadi 80oC. berapa pertambahan panjang aluminium tersebut ..... (αaluminium ; 0,0000024/oC
2,123 m
2,1010101 m
2, 00288 m
3.5 m
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
berapa kalor yang dibutuhkan untuk menaikkan suhu 2 kg air dari 20 oC menjadi 80 oC? (kalor jenis air = 4.200J/kgoC)
1234.000 j
567.000 j
564.000 j
504.000 j
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
sebuah logam bermassa 500 g menyerap kalor 15.000 jule sehingga suhu naik dari 25oC menjadi 75 oC. tentukan kalor jenis logam tersebut.
127 j/kgoC
600 j/kgoC
400 j/kgoC
650 j/kgoC
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
sepotong bessri bermasssa 5 kg akan dinaikan suhunya sebesar 10 K. jika kalor jenis yang dibutuhkan sebesar 20 kj, hitunglah kalor jenis dan kapasitas kalor!
20.000 J dan 200 J/Kg.K
50.000 J dan 600 J/Kg.K
20.000 J dan 400 J/Kg.K
10.000 J dan 150 J/Kg.K
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