Question

from the graph you plotted answer the following.

1. which graph best shows the flowing of heat between a cold and a warm object?
2. explain what the graph is saying in words.

Explanation:

• For Question 1:
• Heat flows from a warmer object to a colder object until thermal equilibrium is reached. In graph A, one object (starting at a higher temperature - represented by the upper dotted line initially) cools down (its temperature decreases over time) and the other object (starting at a lower temperature - represented by the lower dotted line initially) warms up (its temperature increases over time) until their temperatures are equal (where the two lines meet).
• Graph B shows no change in temperature over time for both objects, which is incorrect as heat transfer causes temperature changes. Graph C shows both objects increasing in temperature which is not in line with heat transfer principles (heat is not being added from an external source in a simple two - object heat transfer scenario). Graph D shows one object increasing and the other having a non - physical temperature change pattern (the rate of change and direction do not match heat transfer).
• For Question 2:
• When a cold and a warm object are in contact, heat energy is transferred from the warm object to the cold object. The temperature of the warm object decreases as it loses heat, and the temperature of the cold object increases as it gains heat. This transfer continues until both objects reach the same temperature (thermal equilibrium).

Answer:

1. A
2. When a cold and a warm object are in contact, heat flows from the warm object to the cold object. The temperature of the warm object decreases over time, and the temperature of the cold object increases over time until they reach the same temperature (thermal equilibrium).