First law of thermodynamics is an application of law of conservation of energy(according to energy conservation law energy can neither be created nor it can be destroyed only it can transform from one form of energy to another form of energy) which is adapted for thermodynamic systems.
According to first law of thermodynamics heat added to a system is neither created nor destroyed but it can transforms into other forms of energy.
Answer is "conserved"
The other laws of thermodynamics are:
The second law of thermodynamics states that the entropy of any isolated system always increases.
The third law of thermodynamics states that the entropy of a system approaches a constant value as the temperature approaches absolute zero.
when earth is in rotational motion around the sun,it displaces from its place.
when a ball is placed on an inclined surface it does both the rotational and circular motion.