is the transfer of thermal energy from on object to another. *
1.Speed
2.Heat
3.Gravity

Heat

Explanation: The transfer of heat or thermal energy occurs when there is a difference in temperature in a object or both. Heat moves from objects with higher temperature to objects with lower temperature. If both objects reaches the same temperature then they are said to be in thermal equilibrium, which means that there will be no more heat transfer between the objects.

Yo sup??

The answer is option 2 ie heat

Speed is the rate of change of distance whereas

Heat is the transfer of thermal energy from higher body to lower body usually.

Hope this helps.

root word, prefixes, and suffixes

not too sure thinking all accelerations are pointed down