Explain Energy Transfer Practice Test

Because temperature difference drives heat transfer: particles in the hotter cocoa have more thermal energy, so net energy spreads to the cooler surroundings until temperatures move toward equilibrium.

Because energy is destroyed inside the cocoa over time, causing its temperature to drop.

Because cold objects emit more thermal energy than hot objects, so energy flows from the room into the cocoa.

Because thermal energy can only move by convection, and solids like mugs cannot transfer energy.