Question Paper
Class / Subject: Class 8 (ICSE) · Science
Chapter: Chapter 6 — Chapter 6: Heat Transfer
Time Allowed: 32 minutes
Max Marks: 16
1. What is conduction? [1]
(A) Heat transfer through direct contact
(B) Heat transfer through empty space
(C) Heat transfer through fluid movement
(D) No heat transfer
2. What is an example of conduction? [1]
(A) A metal spoon heating in soup
(B) The Sun heating Earth
(C) Wind carrying heat
(D) Nothing specific
3. What is convection? [1]
(A) Heat transfer through fluid movement
(B) Heat transfer through direct contact
(C) Heat transfer through empty space
(D) No heat transfer
4. What is an example of convection? [1]
(A) Warm air rising
(B) A metal spoon heating
(C) Sunlight reaching Earth
(D) Nothing specific
5. What is radiation? [1]
(A) Heat transfer through electromagnetic waves
(B) Heat transfer through direct contact
(C) Heat transfer through fluid movement
(D) No heat transfer
6. Does radiation need a medium? [1]
(A) No
(B) Yes, always
(C) Only sometimes
(D) Radiation doesn't exist
7. What is an example of radiation? [1]
(A) Sunlight reaching Earth
(B) A metal spoon heating in soup
(C) Warm air rising
(D) Nothing specific
8. Why study heat transfer? [1]
(A) To design efficient heating and cooling systems
(B) No reason
(C) It's not useful
(D) Only for tests
9. What is conduction? [1]
(A) Heat transfer through direct contact
(B) Heat transfer through empty space
(C) Heat transfer through fluid movement
(D) No heat transfer
10. What is an example of conduction? [1]
(A) A metal spoon heating in soup
(B) The Sun heating Earth
(C) Wind carrying heat
(D) Nothing specific
11. What is convection? [1]
(A) Heat transfer through fluid movement
(B) Heat transfer through direct contact
(C) Heat transfer through empty space
(D) No heat transfer
12. What is an example of convection? [1]
(A) Warm air rising
(B) A metal spoon heating
(C) Sunlight reaching Earth
(D) Nothing specific
13. What is radiation? [1]
(A) Heat transfer through electromagnetic waves
(B) Heat transfer through direct contact
(C) Heat transfer through fluid movement
(D) No heat transfer
14. Does radiation need a medium? [1]
(A) No
(B) Yes, always
(C) Only sometimes
(D) Radiation doesn't exist
15. What is an example of radiation? [1]
(A) Sunlight reaching Earth
(B) A metal spoon heating in soup
(C) Warm air rising
(D) Nothing specific
16. Why study heat transfer? [1]
(A) To design efficient heating and cooling systems
(B) No reason
(C) It's not useful
(D) Only for tests