Science Quiz / A2 Physics: Modelling the Universe

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Can you name the A2 Physics: Modelling the Universe?

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QuestionAnswer
The Cosmological Principle States:
As a result of the attraction and concentration cycle, a large core of material forms called a ....
What will happen when the pressure rises in the core of the Sun?
What is the last stage in the formation of a star?
What percentage of the time the Sun spends as a main sequence star will it spend as a 'Red Giant'?
What causes the gases associated with a comet to spread out, become ionised and glow?
What percentage of its original diameter will a white dwarf retain?
What are glowing regions of space called?
Who discovered that 'red shift' was even more noticeable when examining other galaxies?
What will happen as the rate of hydrogen fusion decreases?
Doppler effect: if new wavelength is LESS than original wavelength
What could happen in the immense pressure at the end of a Red Giant phase?
What is a 'closed' cosmology?
the Hubble constant, H,0, =
As time goes on in the universe, how is kinetic energy lost?
Stars...
Why does background (CMB) radiation at a few degrees kelvin support the big bang theory?
One Parsec is...
Doppler effect for electromagnetic waves
What will eventually happen in the core of our Sun?
Critical density of the universe, rho,c, =
Moons...
The big bang model implies a finite age for the universe roughly equal to...
QuestionAnswer
Galaxies...
The ultimate fate of the universe depends on...
The astronomical unit of distance is...
What is a 'open' cosmology?
1 Light Year, ly =
H,0, =
In a supernova, what are the energies high enough to do?
What is a 'flat' cosmology?
Hubble's Law states:
What are comets made up of?
What happens when a Red Giant becomes unstable
What principal initially causes the formation of a star?
Why does density increase in certain areas of space?
What will the change in density be between the Sun and its white dwarf counterpart in kgm3?
Planets...
1 astronomical unit, AU =
Doppler effect: if new wavelength is GREATER than original wavelength
Where (in the Solar System) do comets originate
During what year was a very slight movement towards the red end hydrogen spectrum noticed?
1 Parsec, pc =
Light Year....
Neutron Star...
H,0, =

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