Multiple Choice
Which of the following correctly describes how the process of gravitational contraction can make a star hot?
A) Gravitational contraction involves the generation of heat by chemical reactions, much like the burning of coal.
B) When a star contracts in size, gravitational potential energy is converted to thermal energy.
C) Gravitational contraction involves nuclear fusion, which generates a lot of heat.
D) Heat is generated when gravity contracts because gravity is an inverse square law force.
Correct Answer:
Verified
Correct Answer:
Verified
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