Which object has the most thermal energy?

 - a 175-gram glass of milk at a temperature of 63°F
 - a 175-gram glass of milk at a temperature of 42°F
 - a 175-gram glass of milk at a temperature of 51°F
All three glasses of milk have the same mass but different temperatures. Since the 63°F glass of milk is the hottest, it has the most thermal energy.