SOLAR SYSTEM

UNIVERSE

PLANETARY INTERIORS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is a convection current?
A
the transfer of energy by direct contact
B
the transfer of thermal (heat) energy by the movement of matter in a fluid (liquid or gas)
C
the transfer of energy through a solid, such as the Earth’s crust
D
the transfer of energy from a region of higher temperature to a region of lower temperature
Explanation: 

Detailed explanation-1: -Convection is the process of carrying heat stored in a particle of the fluid into another location. Heat loss may occur by convection to cooler surrounding air or heat gain from surrounding warmer air. Air passing over the skin surface not only evaporates moisture, but also transfers sensible heat to or from the body.

Detailed explanation-2: -Convection is the process of thermal energy exchange in fluids via the motion of matter within them. A bulk transfer of molecules within the fluid occurs. It occurs in both gases and liquids and leads to a cyclical effect. Both natural and forced convective heat transfer exist.

Detailed explanation-3: -Convection is the transfer of thermal energy by particles moving through a fluid (either a gas or a liquid). Thermal energy is the total kinetic energy of moving particles of matter, and the transfer of thermal energy is called heat.

There is 1 question to complete.