Question

A beachgoer leaves a pair of sandals on the shore while she swims. When she puts the sandals on again, the bottom of her feet will feel hot because _____.

Answer 1

well if shes at a beach i would think that the sun is out and because of radiation they're gonna get hot. somebody should probably warn her or she's gonna burn her feet

Answer 2

Answer: conduction of heat.

The radiation of Sun warmed the sole of the sandals overtime. The heat from the sole transferred via conduction to the her feet. Conduction is the mode of heat transfer when two objects are in contact and have temperature difference. Hence, her feet feels hot after putting on the sandals again as heat from the sole conducted to her feet.