A hot metal ball is suspended in the open air. As it cools it loses heat by?
A
conduction only
B
convection only
C
radiation only
D
conduction and convection
E
convection and evaporation
Verified Correct Answer: B.
Physical Principles & Numerical Solution
Convection occurs when heat is carried away from your body via moving air. If the surrounding air is cooler, the air will absorb heat and rise.
As the warmed air rises, cooler air moves in to take its place and absorb more warmth.
Source: WAEC / JAMB / NECO Classroom Archive (Record #28936)