GCSE Physics – Life cycle of a star

Last updated: 14/05/2020
CCEA GCSE Science – Combined science higher Space physics GCSE Physics – Life cycle of a star

Learning Objectives

-I can describe the life cycle of a star
-I can describe the processes that go on in the centre of a star

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  1. Current
  2. Review
  3. Answered

  1. What do stars initially form from?

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  2. What are the clouds of dust and gas which form stars called?

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  3. What does the force of gravity cause dust and gas to do?

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  4. What quickly happens to a protostar?

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  5. What happens as the protostar develops?

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  6. What happens when temperature gets high enough in a protostar?

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  7. When the protostar heats up enough, what stage does it enter?

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  8. What happens once a star is in its main sequence?

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  9. How long does the main sequence of a star normally last?

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  10. How does the size of a star change during its main sequence?

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  11. Why are main sequence stars stable?

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  12. When a star is in its main sequence, how do outward and inward forces balance?

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  13. If a star has more mass, will its main sequence be longer or shorter?

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  14. Why will a star with more mass have a shorter main sequence?

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  15. When does a star “die”, ending its main sequence?

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  16. What do we call small stars?

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  17. What happens to small stars once they die?

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  18. Why are Red Giants red?

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  19. When a Red Giant cools, what happens?

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  20. What is the name for the dust and gas a Red Giant ejects?

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  21. What is left over once a Red Giant ejects its outer layer?

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  22. What is a white dwarf?

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  23. What happens to a white dwarf over time?

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  24. What do we call large stars?

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  25. What happens to large stars once they die?

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