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Cosmology
How far is 1 ly in metres
What is the big bang?
Cosmology
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1
What is the big bang?
When music is much louder then it has any right to be
The starting point of spice and time.
The starting point of space and thyme.
The starting point of space and time.
2
How far is 1 ly in metres
6.94x1015m
4.96x1015m
15x1011m
9.46x1015m
3
What evidence is there for the Big Bang?
The Cosmic Mucrowave Background
The Cosmic Microwave Background
Popcorn
The Comic Microwave Background
4
What important discovery did we realise in the early 1990s about the expansion of the Universe?
I wasn't even born in the 90s, how was I supposed to know?
It is accelerating
It is starting to contract
It is decelerating
5
How much matter in our Universe do we actually know about?
20%
95%
5%
80%
6
What is Hubble's Law
Recessional velocity α distance from Earth
Boil and Trouble
Recessional velocitee α distance from Earth
Recessional velocity α 1 / distance from Earth
7
What was the first indication that dark matter existed?
The velocity of stars does not decrease as you move away from the centre
The velocity of stars decreases as you move away from the centre
The velocity of stars increase as you move away from the centre
Stars don't move, silly.
8
What is redshift?
Waves moving away from the red-end of the spectrum by receeding objects
Waves moving towards the red-end of the spectrum by receeding objects
Wives moving towards the red-end of the spectrum by receeding objects
Waves moving towards the red-end of the spectrum by encroaching objects
9
What is the cosmological principle?
Universe is homogenous and isotropic and the laws of Physics are universal
Universe is homogenous and isotropic and the laws of Physics are epic
Universe is homosapien and isotropic and the laws of Physics are universal
Universe is homogenous and isotonic and the laws of Physics are universal
10
What is the Doppler Effect
The change in wavelength and frequency of a wave as measured by an observer
Cars go vroom
The change in wavelets and frequency of a wave as measured by an observer
The change in wavelength and freckles of a wave as measured by an observer
11
What does isotropic mean?
The Universe doesn't care about its looks
The Universe does not look the same in all directions
The Universe looks the same in all directions
The Universe looks the same in no direction
12
At what time did the first stars form after the start of the Universe?
1 second.
10 million years
30 million years
5 billion years
13
If a star subtends an angle of 0.2 arcseconds, how far is it from Earth?
5pc
5m
5AU
5ly
14
What is the name given to the smallest amount of time with any meaning?
Einstein Time
Hubble Time
Chandrasekhar Time
Planck Time
15
Which expression gives a good approximation for the age of the Universe?
1/V0
H0 x 4
1/H0
H0/1
16
At what time did the first fundamental particles form after the start of the Universe?
10^-3
10^-5
10^-46
10^-6
17
What is the definition of the pc
The distance at which a radius of rads subtends an angle of 2 arcsecond
The distance at which a radius of 2AU subtends an angle of 1 arcsecond
The distance at which a radius of 1AU subtends an angle of 1 arcsecond
The distance at which a radius of 1AZ subtends an angle of 1 arcsecond
18
If Hubble's Constant is measured at 67.8km/s/Mpc, how old is the universe?
4x10^17s
2x10^17s
3x10^17s
10x10^16s
19
What is the value of 1AU
1.6x1011m
1.5x1011m
15x1011m
16x1011m
20
What is the originator of the CMB?
Grapes
Microwave photons
Visible Photons
High-Energy Gamma Photons
21
What does homogenous mean?
Matter isn't distributed uniformly across the Universe.
Matter is distributed uniformly across the Universe.
Matter is distributed un-uniformly across the Universe.
Matter is concentrated in one place in the Universe.
