Which object has the least thermal energy?

 - a 9-kilogram block of steel at a temperature of 198°C
 - a 9-kilogram block of steel at a temperature of 0°C
 - a 9-kilogram block of steel at a temperature of 195°C
All three blocks of steel have the same mass but different temperatures. Since the 0°C block is the coldest, it has the least thermal energy.