The Life Cycle of Stars

12ha2609
Flashcards by 12ha2609, updated more than 1 year ago
12ha2609
Created by 12ha2609 over 5 years ago
26
5

Description

the life cycle of stars in a nut shell

Resource summary

Question Answer
1 Nebula - a cloud of gas that forms a star.
2 Protostar - a cloud of gas becomes so compressed that the heat makes it glow. It then forms a protostar.
3 Main sequence - hydrogen nuclei get close enough to undergo nuclear fusion. Star can now stay stable for billions of years.
4a- Massive stars Red supergiants - stars run out of hydrogen. Outward pressure doesn't balance gravitational pull. The stars core collapses, outer layers expand.
5a- Massive stars Supernova - at the end of the red supergiant's life they collapse rapidly and then explode. Outer layers of gas are thrown off while the core continues to collapse.
6aa- most massive stars Black holes - gravity pulls the cores of massive stars together to form black holes. Black holes are so dense that light can't even escape them.
6ab- massive stars Neutron star - if remains are not dense enough to form black holes, a small, very dense, neutron star is formed.
4b Red giants- - stars run out of hydrogen. Outward pressure does balance gravitational pull. The stars core collapses, outer layers expand.
5b White dwarf- when the core collapses it forms a white dwarf. No more fusion can take place, the star gradually cools over billions of years.
Show full summary Hide full summary

Similar

Forces and motion
Catarina Borges
AQA Physics P1 Quiz
Bella Statham
GCSE AQA Physics - Unit 3
James Jolliffe
Using GoConqr to study science
Sarah Egan
GCSE AQA Physics 1 Energy & Efficiency
Lilac Potato
Waves
kate.siena
Forces and their effects
kate.siena
Junior Cert Physics formulas
Sarah Egan
OCR Physics P4 Revision
Dan Allibone
P2 Radioactivity and Stars
dfreeman
Physics P1
themomentisover