AQA GCSE Physics Space

What are stars formed from?
Dust and gas from a nebula
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After a red (or super) giant, what are the two possible stages in the cycle?
White dwarf or supernova
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What two stages can follow a supernova?
Neutron star or black hole
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What reaction occurs in stars?
Nuclear
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What forces are stable during a star's main sequence?
Pressure from expanding hot gases and gravity
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What follows the main sequence in the life cycle of smaller stars?
Red giant
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What follows a white dwarf in the lifecycle of a small star?
A black dwarf
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What are the final two stages in the life cycle of a large star?
Neutron star or black hole
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What is a natural satellite?
An object which orbits a planet or star and is NOT man-made
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What is an artificial satellite?
An object which orbits a planet or star and is man-made
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What is 'red-shift'?
Wavelength of em wave gets longer
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How does red-shift support the idea of the big bang?
If planets & star are moving away, they must have started somewhere central
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What is the Big Bang Thoery?
A) An excellent TV show B) The universe was created by a huge explosion at a single point and has been expanding from that point ever since.
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What is a geostationary satellite?
They have an orbit of 24 hours. They stay in a fixed position over the Earth’s surface
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How is the radius of a satellite affected by its speed?
The higher the speed, the larger the radius
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What is the name of our galaxy?
The Milky Way
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Other cards in this set

Card 2

Front

After a red (or super) giant, what are the two possible stages in the cycle?

Back

White dwarf or supernova

Card 3

Front

What two stages can follow a supernova?

Back

Preview of the front of card 3

Card 4

Front

What reaction occurs in stars?

Back

Preview of the front of card 4

Card 5

Front

What forces are stable during a star's main sequence?

Back

Preview of the front of card 5
View more cards

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