CAIE IGCSE Physics 6.2.2.3 Star life cycle: (a) forms from
Practise sequencing star formation and endings, explaining protostar collapse, stable-star balance and mass-dependent final stages.
- Syllabus
- 2026–2028
- Course
- Physics 0625
Exam points
- describe gas and dust collapsing under gravity to form a hotter protostar
- explain stable-star balance between inward gravity and outward pressure from high temperature
6.2.2.3—Star life cycle: (a) forms from question 1
[Maximum number: 2]
Describe what happens to a star when most of the fuel in its centre has been converted to helium.
(the star) expands
B1
Any one from:
- (smaller star) forms a red giant
- (more massive star) forms a red supergiant
B1
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