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

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