Question

In order for heat to transfer from one object to another, which must be true?

a. The objects must be different temperatures.
b. The objects must be different sizes.
c. The objects must be the same temperature.
d. The objects must be the same size.

Answer 1

In order for heat to transfer from one object to another, the objects must be at different temperatures. (a)

Answer 2

a) the objects must be different temperatures

Step-by-step explanation:

The size of the objects does not matter, and they must be different temperatures. If the objects were the same temperature, there would be no heat transfer able to occur.

Hope this helps!