Compare and contrast the three heat transfer me... - SS2 Physics Heat and Thermodynamics Question

Conduction, convection, and radiation are all heat transfer mechanisms, but they differ in how heat is transferred. Conduction occurs through direct contact between particles, primarily in solids. It is efficient in materials with high thermal conductivity and finds applications in cooking, metalworking, and insulation materials.

 

Convection involves the movement of fluids and is more effective in liquids and gases. Natural convection occurs due to density differences, while forced convection requires external forces. It is used in heating, cooling, and ventilation systems. Radiation is the transfer of heat through electromagnetic waves and is the only mechanism that can occur in a vacuum. It is essential for heat transfer from the Sun, and its applications include heating, cooking, and thermal imaging.