Question

Lucy is making a cup of hot chocolate. She puts the chocolate and hot water into a cup, and stirs the mixture. A few minutes later, she notices the cup and the spoon have gotten hot. What made Lucy’s cup and spoon get hot? (1 point) Responses Heat was transferred through conduction to the cup and spoon when the hot water molecules flowed in currents through the cooler molecules of the hot chocolate mix and transferred heat. Heat was transferred through conduction to the cup and spoon when the hot water molecules flowed in currents through the cooler molecules of the hot chocolate mix and transferred heat. Heat was transferred through conduction to the cup and spoon when the hot water molecules collided frequently with the cooler molecules in the cup and spoon and transferred heat. Heat was transferred through conduction to the cup and spoon when the hot water molecules collided frequently with the cooler molecules in the cup and spoon and transferred heat. Heat was transferred through convection to the cup and spoon when the hot water molecules moved through the cooler molecules in the surrounding air and transferred heat. Heat was transferred through convection to the cup and spoon when the hot water molecules moved through the cooler molecules in the surrounding air and transferred heat. Heat was transferred through convection to the cup and spoon when the hot water molecules radiated into the cooler molecules of the hot chocolate mix and transferred heat.

Answer 1

The correct response is:

Heat was transferred through conduction to the cup and spoon when the hot water molecules collided frequently with the cooler molecules in the cup and spoon and transferred heat.

In this scenario, conduction is the relevant process because it involves the transfer of heat through direct contact between molecules. The hot water molecules collide with the cooler molecules in the cup and spoon, transferring heat and causing them to get hot.