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WorksheetsUniverse and Galaxies
Total questions: 26
Worksheet time: 13mins
Which does the existance of cosmic background radiation support?
the Big Bang Theory
the inflationary model
critical density
Hubble constant
Our galaxy is called
Centaurus A
Andromeda
the Milky Way
Triangulum
Which type of galaxy is illustrated?
spiral
elliptical
irregular
it's not a galaxy
According to latest theories, the Big Bang happened
3 million years ago
about 13.8 billion years ago
3 billion years ago
4.5 billion years ago
What is the origin of the cosmic background radiation?
it is a remnant of the Big Bng
it is emitted by radio galaxies
it is dark energy
it is emitted by stars
Our Sun is just one of many millions of stars in a froup of stars called a
universe
solar system
cosmos
galaxy
At what time point in the Universe's history did all the forces in nature appear along with particles, neutrons, protons, and electrons?
One second after the Big Bang
Three minutes after the Big Bang
500,000 years after the Big Bang
1 million years after the Big Bang
Because light takes time to travel through space, we see objects as they were when the light was given out, not as they are now.
True
False
The unit of length that astronomers use is the
light year
meter
mile
kilometer
Which component of the universe contains all other components listed below and would have the greatest mass?
Solar system
Nebula
Galaxy
Planetary System
Which of these correctly identifies different objects in the universe according to their size and composition?
A nebula is larger than a galaxy
a solar system contains many stars
a galaxy contains many solar systems
a galaxy is bigger than a universe
Where in the Milky Way is Earth found?
Our Sun is in the middle of the galaxy
about 1 light year from the middle of the galaxy
It varies depending on how it rotates
Near the outer edge of the galaxy
What is the nearest star to planet Earth
Moon
Sun
Sirius
Proxima Centauri
Which of the following correctly places these in order from LARGEST to SMALLEST?
galaxy -- local group/cluster -- planet -- solar system -- universe
universe -- local group/cluster -- galaxy -- solar system -- planet
planet -- solar system -- galaxy -- local group/cluster -- universe
universe -- galaxy -- solar system -- local group/cluster -- planet
A galaxy which is either spherical (ball like) or a flattened disk is a ___ galaxy.
elliptical
humanoid
irregular
spiral
A galaxy which has a nucleus of bright stars and two or more arms in circular formation is called a ___ galaxy.
elliptical
humanoid
irregular
spiral
A Group of stars, and or star systems, star clusters, dust and gas held together by gravity is known as:
Universe
Galaxy
Solar System
Planet
A galaxy that does not have a regular shape?
Spiral
Elliptical
Irregular
Quasar
What Galaxy is Earth located?
Andromeda
Milky Way
Sagittarius
Snickers
