WorksheetsCosmosology Review
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
The observation that the farther away a galaxy is, the faster it is moving away, is called
a)
Hubble's Law
b)
the theory of relativity
c)
the axion theorem
d)
Cepheid variability
2.
Who was it that discovered Cepheid Stars and used them to determine distances in the Universe?
a)
Ptolemy
b)
Henrietta Swan Leavitt
c)
John C Mather
d)
Albert Einstein
3.
A pulsating variable star that follows a period-luminosity relation and hence is very useful for measuring cosmic distance
a)
Supernovas
b)
Cepheid stars
c)
Gamma Ray Bursts
d)
Haley's Comet
4.
What's an emission spectrum?
a)
a mixture of gases that make up an atmosphere
b)
a mixture of liquids that make a maglosphere
c)
a unique spectrum of the electromagnetic radiation emitted by a source
d)
a unique mixture of galaxies that create an interstellar cosmic event.
5.
Who developed the theory of relativity, including e=mc^2?
a)
Albert Einstein
b)
Henrietta Swan Leavitt
c)
John Lithgow
d)
Evangeline Lilly
6.
Who launched a satellite to confirm and measure the cosmic background radiation?
a)
Jaeger Schnaups
b)
Chandra
c)
It Chi Buht
d)
John C Mather
7.
What would the universe be like if gravity was stronger?
a)
The universe would be expanding faster.
b)
Everything would be in black holes.
c)
No stars or planets would be able to form.
d)
Orbits would come to a stop
8.
What was the first element to form?
a)
Helium
b)
Nitrogen
c)
Hydrogen
d)
Carbon
9.
How old is the Universe?
a)
1.2 billion years
b)
785 million years
c)
1.4 gazillion years
d)
13.8 billion years
10.
Who proved that other galaxies existed beyond the edge of the Milky Way?
a)
Edwin Hubble
b)
Obi-Won Kenobi
c)
Ho Chi Minh
d)
Vera Rubin
11.
How old is the Earth?
a)
1.2 million years
b)
5 billion years
c)
105 billion years
d)
9.8 million years
12.
In which of these situations would you use the Julian Day Calendar?
a)
When you are trying to find the time between two astronomical events
b)
To find out what time of year the solstice occurs
c)
To plan a birthday party
d)
To see what day Christmas will fall in 2025
13.
When would you use the Gregorian Calendar?
a)
When you are trying to find the time between two astronomical events
b)
To make sure there is no confusion between cultures
c)
To let people know when a plan is arriving
d)
To determine the day of the week you were born
14.
What is cosmic microwave background (CMB)?
a)
radiation that is used to determine distances between planets
b)
radiation coming from the core of a planet
c)
radiation from the exhaust of UFOs
d)
leftover radiation from the Big Bang, or the time when the universe began
15.
What are the three main evidences for the Big Bang Theory?
a)
Axions, supernovas, the presence of iron in some stars
b)
Asteroids, cosmic radiation, comets
c)
Red shift, Cosmic Background Radiation, expansion of the universe
d)
Leonard, Sheldon, Penny
16.
What is the doppler effect?
a)
the reason that echos exist
b)
the proof of supernovas
c)
the reason hot roads look wet
d)
observed change in the frequency of a wave when the source is moving
17.
The hypothetical form of matter that is believed to make up 85 percent of the matter in the universe is called
a)
infared matter
b)
dark matter
c)
light matter
d)
translucent matter
18.
A point in which matter is infinitely dense is called
a)
dark energy
b)
singularity
c)
Gamma Ray bursts
d)
duplicity
19.
What is cosmology?
a)
The study of the universe as a whole
b)
The study of gravity between planets
c)
The study of light travel in galaxies
d)
The study of planet orbits
20.
When light is going by a large gravitational field, it
a)
passes by unchanged
b)
bends
c)
floats
d)
splits
21.
Which one of these ideas is a known fact that is confirmed by science?
a)
The universe has expanded and contracted many times
b)
Light from distant falaxies is red shifted
c)
The Earth and moon formed millions of years apart
d)
Axions make up dark matter
22.
A gamma ray burst is evidence of
a)
Black hole formation
b)
satellite returning to the atmosphere
c)
sequential shifting
d)
planet collision
23.
What is the primary force that holds galaxies together?
a)
Electromagnetic force
b)
Gravitational force
c)
Nuclear force
d)
Weak force
24.
Which phenomenon explains the apparent change in frequency of a wave due to the motion of the source or observer?
a)
Doppler Effect
b)
Photoelectric Effect
c)
Quantum Tunneling
d)
Wave-Particle Duality
25.
What is the term for the boundary around a black hole beyond which no light or other radiation can escape?
a)
Event Horizon
b)
Singularity
c)
Photon Sphere
d)
Accretion Disk
100 %
