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ZZEZEE

Authored by Diana Sari

Physics

7th Grade

Used 9+ times

ZZEZEE
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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

Media Image

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

Media Image

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

Media Image

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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