The amount of heat Q absorbed by a body is directly proportional to
AIts mass m
BThe cube of its volume V
CThe square of its surface area A
DThe inverse of its temperature T
Answer & Solution
Correct answer: A. Its mass m
1. The chapter lists the factors that affect Q.
2. First factor: Q is proportional to mass m.
3. Doubling mass doubles the heat needed for the same temperature change.
4. So option A is correct.
_Source: Selina Concise Physics Class 8, Ch 5 Heat (Mistral OCR'd PDF), section on measurement of heat_
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