Question

this chart lists four examples of two objects that are in contact. example 1 object 1: fire object 2: air example 2 object 1: a metal at 80°c object 2: a metal at 12°c example 3 object 1: the cool ocean object 2: the warm air example 4 object 1: a tool with a lot of thermal energy object 2: a material with little thermal energy which statement accurately describes the flow of heat in each example? heat will flow from object 1 to object 2 in examples 2 and 4, and heat will flow from object 2 to object 1 in examples 1 and 3. heat will flow from object 1 to object 2 in examples 1 and 3, and heat will flow from object 2 to object 1 in examples 2 and 4. heat will flow from object 1 to object 2 in example 3, and heat will flow from object 2 to object 1 in examples 1, 2, and 4. heat will flow from object 1 to object 2 in examples 1, 2, and 4, and heat will flow from object 2 to object 1 in example 3.

Explanation:

Step1: Recall heat - flow principle

Heat always flows from a higher - temperature or higher - thermal - energy object to a lower - temperature or lower - thermal - energy object.

Step2: Analyze Example 1

Fire is at a high temperature compared to air, so heat flows from Object 1 (Fire) to Object 2 (Air).

Step3: Analyze Example 2

The metal at 80°C is at a higher temperature than the metal at 12°C. So heat flows from Object 1 (80°C metal) to Object 2 (12°C metal).

Step4: Analyze Example 3

The warm air is at a higher temperature than the cool ocean, so heat flows from Object 2 (warm air) to Object 1 (cool ocean).

Step5: Analyze Example 4

The tool with a lot of thermal energy has a higher thermal - energy state than the material with little thermal energy. So heat flows from Object 1 (tool) to Object 2 (material).

Answer:

Heat will flow from Object 1 to Object 2 in examples 1, 2, and 4, and heat will flow from Object 2 to Object 1 in Example 3.