
ZZEZEE
Quiz
•
Physics
•
7th Grade
•
Practice Problem
•
Hard
Diana Sari
Used 9+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
What is the formula to calculate heat energy required to raise the temperature of any substance?
2.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Calculate the quantity of heat needed to raise the temperature of 2 kg of water from 30 °C to 80 °C? (spesific heat of water is 4200 J/kg°C)
100 J
4200 J
8400 J
420.000 J
3.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
460 J
9200 J
20.000 J
920.000 J
4.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Besar kalor yang diperlukan oleh 2 kg es pada proses A ke C, jika kalor jenis es 2.100 J/kg°C, kalor lebur es 360.000 J/kg, dan kalor jenis air 4.200 J/kg°C adalah .....
762.000 J
5.520.000 J
42.000 J
2.100.000
5.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Keping bimetal terdiri dari
keping berwarna hitam memiliki koefisien muai panjang yang
0.000019/°C
keping bimetal berwarna putih memiliki koefisien muai panjang
0.000017/°C
Keping bimetal dipanaskan sehingga setiap bagian dari keping tersebut mengalami pemuaian.
Gambar keping bimetal yang tepat setelah dipanaskan ditunjukan pada nomor ....
I
II
III
IV
6.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
The candle will slowly heat the metal and transfer the heat directly to the mans hand
conduction
convection
radiation
isolation
7.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
What is an example of thermal energy transfer by radiation?
A metal spoon becoming hot in a bowl of soup
Water boiling in a pot on a burner on the stove
The Sun heating the surface of the Earth
A hot air balloon releasing gas and rising
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