Week 4, clip 3

Timepoint:  05:42.0

1) Which statement below best describes the process that produces energy in the Sun?

- Protons fuse together into helium nuclei, releasing energy in the form of photons and neutrinos.
- Photons fuse together into helium nuclei, releasing energy in the form of neutrinos and protons.
- Protons fuse together into iron nuclei, releasing energy in the form of photons and heat.
- Protons split into neutrons and positrons, releasing energy in the form of helium nuclei.

Answers:
1) Protons fuse together into helium nuclei, releasing energy in the form of photons and neutrinos.