Question detail

What is the primary energy source for stars?

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

Nuclear fission and fusion

Question

A. Nuclear fission
B. Chemical reactions
C. Nuclear fusion
D. Gravitational collapse

Answer

Nuclear fusion

Explanation

The primary energy source for stars is nuclear fusion, where hydrogen nuclei fuse to form helium, releasing vast amounts of energy.

Common mistake

Confusing Fusion with Fission

Students often confuse nuclear fusion with nuclear fission, thinking both processes are the same.

Remember that nuclear fusion is the joining of two light nuclei to form a heavier nucleus, while nuclear fission is the splitting of a large unstable nucleus.

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