An object moving in a gravitational field is observed to speed up. Explain why. A. The object has gained electrical potential energy.
B. The object is falling in the gravitational field, so it has gained kinetic energy.
C. The object has gained chemical potential energy.
D. The object is rising in the gravitational field, so it has lost kinetic energy.

Which of the following statements is true about energy quantization at the atomic level? electrons in the outermost orbits are the most stable. electrons in all the orbits around the nucleus have the same amount of energy. electrons in the orbit closest to the nucleus have the least amount of energy. electrons absorb or release the same amount of energy independent of the energy levels.