Multiple choice general knowledge science & technology

Stars generate energy through ?

  1. Nuclear Fission

  2. Proton Acceleration

  3. Nuclear Fusion

  4. Electron Disintegration

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Stars generate energy through nuclear fusion in their cores, where extreme temperatures and pressures enable hydrogen nuclei to combine into helium nuclei. This process releases energy because the total mass of the products is slightly less than the mass of the reactants - this mass difference is converted to energy. Nuclear fission involves splitting heavy nuclei, which doesn't occur in normal stellar cores.