how is the work-energy theorem connected to the law of conservation of energy? what other component must be added to make make this law complete. how are conservative and non-conservative forces involved in this?

Scout feels ill one day before school. her mother puts a thermometer in her mouth and the temperature begins to climb to 100°f. what is happening between the cooler thermometer and scout's body? a) scout's body is applying a force to the particles in the thermometer. b) kinetic energy is being transferred from her mouth to the thermometer. c) potential energy is being lost by the thermometer and gained by scout's body. d) the potential energy stored in foods is converted to mechanical energy to raise the mercury in the thermometer.

Which accounts for an increase in the temperature of a gas that is kept a constant volume

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.