Evalution Sheet Chapter Heat Energy
Name :
Class :

Instruction:
Give cross (X) letter in front of the correct answer.
1. The unit of heat in international system is …
Satuan internasional kalor adalah ….
a. Kilogram
b. Kelvin
c. Joule
d. Calorie

2. Which one is not used to calculate the change of heat energy?
Manakah yang tidak digunakan untuk menghitung perubahan energi kalor?
a. Mass
b. Volume
c. Specific heat capacity
d. Temperature change

3. The energy flowing from a warm body to a cooler one is called….
Energy yang berpindah dari panas ke dingin disebut ….
a. Heat energy
b. Calorie
c. Mass
d. Specific heat capacity

4. Specific heat capacity is measure in unit ….
Kalor jenis diukur dengan satuan ….
a. oC c. J
b. kg d. J/kg.K

5. One calorie is equals to ….. Joule
Satu kalori sama dengan ….. joule
a. 2,4 c. 4,2
b. 6,3 d. 8,4

6. A piece of ice block located on top of a table will melt, because …..
Sebongkah es batu di atas meja akan mencair, karena ….
a. Heat energy resist (menyebabkan terjadinya) the change of temperature
b. Heat energy changes the state(merubah wujud) of a substance
c. Heat energy is proportional to (digunakan untuk) the change of temperature
d. Heat energy which is provided (yang tersedia) is equal to the heat energy which is release (yang dilepas)
Look at diagram to answer the question number 7 – 8.
GAS
2
3
1
4
SOLID
FLUID


7. Change of state from a substance releasing heat energy in the diagram above is….
Perubahan wujud zat pada diagram di atas yang melepaskan energy panas adalah ….
a. 1 and 2 c. 3 and 4
b. 2 and 3 d. 1 and 4

8. Change of state from a substance receiving heat energy in the diagram above is….
Perubahan wujud zat pada diagram di atas yang menerima energy panas adalah ….
a. 1 and 2 c. 3 and 4
b. 2 and 3 d. 1 and 4

9. A 0,2 kg of iron has specific heat capacity of 0,1 kcal/kg.oC. if its temperature decreases from 75oC to 25oC, then the heat energy released is ….
Sebatang besi dengan massa 0,2 kg memiliki kalor jenis 0,1 kcal/kg.oC. jika suhunya menurun dari 75oC ke 25oC, berapakah energy kalor yang dilepaskan …..
a. 0,25 kcal c. 1 kcal
b. 0,5 kcal d. 1,5 kcal

10. If the temperature of 200 grams of water (specific heat capacity is 4200 J/kg.oC) is increase from 20oC to 100oC, the heat energy require is….
Jika suhu 200 gram air dinaikkan dari 20oC hingga 100oC dengan kalor jenis air 4200 J/kg.oC maka berapakah
a. 56300 J c. 76700 J
b. 63200 J d. 67200 J
Study the following table to answer the question number 11-12.
Material
Specific heat capacity (J/kg.K)
Copper (tembaga)
Aluminium
Silver (perak)
Iron (besi)
380
920
235
450

11. If you heat the same amount of mass (dipanaskan dengan jumlah massa sama) of the above materials, which material gets hot the fastest (paling cepat panas)?
a. Copper b. aluminium c. silver d. iron

12. If you heat the same amount of mass (dipanaskan dengan jumlah massa sama) of the above materials, which material gets hot the last (paling lambat panas)?
a. Copper b. aluminium c. silver d. iron

13. The change of matter from gas to liquid is called ….
a. Sublimation c. melting
b. Evavoration d. condensation

14. The change of matter from solid to gas is called …..
a. Sublimation c. melting
b. Evavoration d. condensation

15. The temperature of liquid when it boils is called ….
a. Freezing point c. Melting point
b. Boiling point d. Condensation point

16. The temperature when a matter is starting to melt is called ….
a. Freezing point c. Melting point
b. Boiling point d. Condensation point

17. Melting heat is measure in unit (diukur dengan satuan) ….
a. J/kg.K c. J
b. kg d. J/kg

18. Heating 4 kg of ice from 0oC to become water at 0oC (the melting point of ice is 3,32 x 105 J/kg) needs heat energy of ….
a. 1,11 x 106 J c. 1,33 x 106 J
b. 1,23 x 106 J d. 3,33 x 106 J

19. How much heat is needed for melting 10 kg alcohol in frozen condition if its melting heat is 6,9 x 104 J/kg?
a. 69 x 104 J c. 0,69 x 104 J
b. 6,9 x 104 J d. 690 x 104 J

20. How much heat is needed for vaporizing 5 kg of water if its vapouring heat is 2,27 x 106 J/kg?
a. 10,5 x 106 J c. 11,35 x 106 J
b. 12.25 x 106 J d. 13,45 x 106 J

Thank you and good luck