Class 10 Physics · Chapter 2 · Test 3
Test 3: Complete Chapter – Concepts, Comparisons and Details
30 questions · 25 min · 30 marks
Want to try first? Take the free Physics test: Test 1: Thermal Expansion and Specific Heat Capacity
Sample questions
The first 5 of 30. Try each one, then tap to see the answer.
Question 1
Which method of heat transfer does not require a medium?
- AConduction
- BConvection
- CRadiation
- DConduction and convection
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Answer: C
Radiation occurs through electromagnetic waves without requiring a medium.
Question 2
Heat transfer by the actual movement of molecules from a hot area to a cold area is:
- Aconduction
- Bconvection
- Cradiation
- Dinsulation
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Answer: B
Textbook definition of convection.
Question 3
Which of the following matches the type of heat transfer with its usual medium?
- AConduction – solids
- BConvection – vacuum
- CRadiation – solids only
- DConduction – vacuum
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Answer: A
Conduction is most efficient in solids; convection occurs in fluids; radiation needs no medium.
Question 4
Liquids and gases are not very efficient in conducting heat, but heat can still be transferred through them by:
- Aradiation only
- Bconvection
- Cevaporation
- Dvibration of lattice
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Answer: B
Convection compensates for the poor thermal conductivity of fluids.
Question 5
Convection is not possible in solids because their particles:
- Aare fixed in position and cannot flow
- Bmove freely
- Care too hot
- Dare lighter
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Answer: A
Convection needs movement of heated molecules, which occurs only in fluids.
More tests in Transfer of Thermal Energy
- Test 1: Conduction and Convection
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- Test 2: Radiation, Applications and Greenhouse Effect
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- Test 4: Short Questions – Part 1
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- Test 5: Short Questions – Part 2
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- Test 6: Long Questions
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