If a gas cloud shrinks its gravitational potential energy is converted into
A) chemical energy.
B) only radiative energy.
C) kinetic energy and sound waves.
D) thermal energy and radiative energy.

Question

Quizplus · Accepted Answer

As the gas cloud shrinks, its particles move closer together, which causes an increase in kinetic energy and results in the production of thermal energy. Additionally, as the gas cloud heats up, it emits radiation in the form of electromagnetic waves, which accounts for the radiative energy produced during the shrinking process. Therefore, both thermal energy and radiative energy are generated and the correct choice is D. Choice A is incorrect because chemical energy is not involved in the process of gas cloud contraction. Choice B is incorrect because radiative energy is not the only form of energy produced during the shrinking process. Choice C is incorrect because although kinetic energy and sound waves are generated, thermal and radiative energy are also produced.

If a Gas Cloud Shrinks Its Gravitational Potential Energy Is