Physics for IGCSE & O level - Thermal Effects (Section 1 - No. 7)
What is a result of the convection of a hot water system?
Warm water sinks
Cold water rises
Cool water sinks and warm water rises
The water's temperature remains constant
คำอธิบาย
Convection currents involve the movement of warm, less dense fluid rising and cooler, denser fluid sinking.