Question

Thermal energy will transfer from object A to object B if:

A. The motions of the molecules in object B are faster than those of object A.

B. The temperature of object A is higher than that of object B.

C. The average kinetic energy of the molecules in object A is lower than object B.

D. Object B is hotter than object A.
I think it's B? Please help.

Answer 1

Answer:

B. The temperature of object A is higher than that of object B.      

Explanation:

Thermal energy always transfers from hotter object to colder one. Temperature indicates the hotness and coldness of a body. In a hotter body, molecules move faster and thus, their average kinetic energy would be greater.

If thermal energy will transfer from object A to object B, then the temperature of object A would be higher than that of object B. Also, its molecules would move faster and would have greater average kinetic energy.