ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?\no…

Answer:

D. internal energy

Explanation:

Step1: Define thermal energy

Thermal energy is related to temperature - the kinetic energy of particle motion due to heat. But it doesn't consider all forms of energy in the particles.

Step2: Define electric energy

Electric energy is related to the movement of charged particles in an electric - field, not relevant to the general energy of particles in a gold bar.

Step3: Define potential energy

Potential energy is stored energy due to position or state, but it doesn't account for all the energy of particles in a substance.

Step4: Define internal energy

Internal energy of a substance is the total energy of all its particles, including kinetic and potential energies of the particles within the substance. Examining the energy of particles in a bar of gold means studying its internal energy.