Final answer:
Heat is energy on the move, specifically the transfer of thermal energy due to temperature differences between objects. Temperature measures the average kinetic energy of particles and is different from heat, which is the actual energy flow. The correct option is d.
Step-by-step explanation:
The correct answer to the question regarding heat is that it is d. energy on the move. Heat is the transfer of thermal energy from a warmer object to a cooler one. This can be observed when we touch an object and it feels hot because energy is being transferred to our hands, or it feels cold because energy is being transferred away from our hands.
It's also important to differentiate between heat and temperature. Temperature is a measure of the average kinetic energy of the particles within an object, indicating how hot or cold that object is. Whereas heat represents the actual transfer or flow of energy due to a temperature difference.
Since heat is an energy transfer, it's also measured in joules, which is the SI unit of energy. This illustrates that heat involves kinetic energy that is associated with the motion of atoms and molecules. The correct option is d.