Question

Which statement describes a situation where convection is least likely to occur?

a. Heat travels from hot coffee to a metal spoon that is used to stir the coffee.
b. Heat travels from the warm top layer of a lake to the cooler depths of the lake.
c. Heat travels from the hot liquid layer of the Earth's core to the cooler liquid
beneath the crust.
d. Heat travels from the warmer water to the cooler air above the water.

Answer 1

A

Step-by-step explanation:

Convection is the transfer of thermal energy from one place to another by movement of fluid. Heat travels from hot coffee to metal spoon by conduction instead of convection as the thermal transfer does not occur by fluid movement. The other three options transfer thermal energy by convection as they all involve movement of fluid.