Question

1 in the picture to the right thermal energy moves from the a. glass to the air b. lemonade to the air c. ice to the lemonade d. air to the lemonade 2 which has the lowest specific heat? a. an object that is made out of metal b. an object that does not transfer thermal energy easily c. an object with electrons that do not move easily d. an object that requires a lot of energy to change its temperature

Explanation:

Step1: Recall heat - transfer principle

Heat always transfers from a higher - temperature region to a lower - temperature region. In the case of a cold glass of lemonade, the air is at a higher temperature than the lemonade. So, thermal energy moves from the air to the lemonade.

Step2: Recall specific - heat concept

Specific heat is the amount of heat energy required to raise the temperature of a unit mass of a substance by one degree Celsius. Metals generally have low specific heat values. An object that does not transfer thermal energy easily has a high specific heat. Objects with electrons that do not move easily are poor conductors but not directly related to low specific heat in the way metals are. An object that requires a lot of energy to change its temperature has a high specific heat.

Answer:

1. D. air to the lemonade.
2. A. an object that is made out of metal.