Space Physics Flashcards

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1
Q

What is the life cycle a low mass star

A

Nebula
Protostar
Main sequence
Red giant
White dwarf
Black dwarf

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2
Q

What is the life cycle of a high mass star

A

Nebular
Protostar
Main sequence
Red super giant
Supernova
Neutron and black hole

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3
Q

Why do main sequence remain stable

A

Gravity inwards is equal to fusion outwards

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4
Q

What is red shift

A

Moving away
Wavelength increases
Speed increases

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5
Q

How does red shift support Big Bang theory

A

Expanding universe -dark energy and dark matter
Supernova suggests galaxies are moving away at a faster rate

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6
Q

If temp of protostar increases can form a

A

Helium nuclei

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7
Q

What are moons

A

Natural satellites

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8
Q

Why does velocity change but not speed

A

Force of gravity changes and direction changes

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9
Q

If speed of orbit increases ……

A

Radius of orbit changes and decreases so gets closer so has more gravity

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