Space Physics

Question 1

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Question 2

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Question 3

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Question 4

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Question 5

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Question 6

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Inward force of gravity is balanced by outward force due to pressure caused by thermal expansion from nuclear fusion reactions

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Question 11

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Question 12

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Question 15

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Question 16

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Question 17

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Question 19

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Question 20

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Question 21

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Question 22

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Question 24

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Question 26

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Question 27

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Question 28

Describe what happens when a star becomes a red giant

Answer 28

Star has used up almost all of its Hydrogen and the outward pressure from nuclear fusion causes it to expand.
The outer parts of the star cool and glow red.
Helium fuses into other elements

Question 29

Describe what happens during the **white dwarf **stage of a stars lifecycle

Answer 29

The gravitational force can no longer hold the outer layers of gas.
These gases flow out and cool to form a nebula which could become another star. The core of the original star cools.

Question 30

Describe what happens during the black dwarf stage of a stars lifecycle

Answer 30

Fusion stops and star becomes very cold

Question 31

What is a neutron star?

Answer 31

The collapsed core of a large star