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?
Lucy's cup and spoon got hot because of the transfer of heat from the hot water and chocolate mixture.
Lucy's cup and spoon got hot because she poured hot water into the cup and stirred it with the spoon. When Lucy added hot water to the cup, the heat from the water transferred to the cup itself, causing it to heat up. Similarly, when Lucy stirred the hot water with the spoon, the heat was transferred from the water to the spoon, warming it as well. This is known as heat transfer by conduction, where heat energy is passed from one object to another through direct contact.
