A room is heated in winter by an electric heater placed near the floor
PHYSICS · Single correct · AP · Physics 2: Algebra-based · Thermodynamics · Thermodynamics
Problem
A room is heated in winter by an electric heater placed near the floor. After some time, the whole room becomes warm. Which mechanism mainly distributes the heat throughout the air in the room?
(a) Conduction between adjacent air molecules
(b) Radiation emitted by the heater and reflected by the walls
(c) Natural convection currents in the air
(d) Forced convection created directly by the heater’s coils