I NEED HELP WITH 1-4 ASAP PLEASE!!!

2. The total thermal energy of a system depends jointly on the temperature, total number of atoms in the system, and the state of the material.
4. Energy Transfer
(1) Energy Transfer
(2) ?
(3) Atoms
The total thermal energy of a system depends jointly on the temperature, total number of atoms in the system, and the state of the material.
4. Energy Transfer