Balloon 1 and Balloon 2 are filled with the same amount of air. The air in Balloon 1 is cooled so that it is at a lower temperature than the air in Balloon 2. The air in which of these balloons has less thermal energy?
The air in balloon 1 has less thermal energy
Over time, what cup will loose thermal energy to the air around it? Why?
Cup 1 because it is a higher temperature than the air in the room. Thermal energy flows from areas of high temperature to low temperature
Over time, what cup will gain thermal energy from the air around it?
Cup 2 because it is a lower temperature than the air in the room. Thermal energy flows from areas of high temperature to areas of low temperature.