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WorksheetsAstronomy
Total questions: 19
Worksheet time: 10mins
What is the soil-like layer on the moon’s surface called?
maria
regolith
basalt
magma
The most widely accepted model for the origin of the
moon involves
the formation of the moon from dust and gas when Earth formed.
a large body hitting Earth and ejecting debris that became the moon.
the capture of the moon from Mars by Earth.
a large body hitting Mars and splitting off debris that
became the moon.
Which of the following is NOT present on the moon?
light
gravity
atmosphere
heat
Isaac Newton was the first person to formulate and test the law of
universal gravitation
acceleration
orbital velocity
universal mass
Which astronomer discovered that the planets orbit the sun in oval-shaped paths called ellipses?
Kepler
Brahe
Galileo
Archimedes
The geocentric model of the solar system has the planets
and the moon orbiting the sun.
orbiting the sun and the moon orbiting Earth.
and the moon and sun orbiting Earth.
orbiting the sun and the sun orbiting Earth.
Why will our sun not become a supernova?
It is too bright
It is too small
It is too large
It is too old
Stars are round due to a balance of forces. What is the name of the balance?
radiation pressure
nuclear fusion
gravity
hydrostatic equilibrium
How will our sun end its life?
Black hole
Black dwarf
Brown dwarf
Neutron star
Which of the following will give the best indication of a star's temperature?
the distance of the star
the radius of the star
the color of the star
the age of the star
Which of the following stages represents a dying star?
Main sequence
Protostar
Nebula
Red Giant
Which of the following is the most abundant element in the Sun?
Hydrogen
Helium
Carbon
Oxygen
Helium flash occurs:
In very massive stars
When the helium nucleus breaks its degeneracy
At the Asymptotic Giant Branch phase
when the nucleus burns helium
Stars can take different evolutionary paths due to their initial:
Brightness
Mass
Temperature
Color
Which following evolutionary sequence is correct?
PMS-AGB-RGB-BH
MS-HB-RGB-AGB-SN-WD
MS-RGB-HB-AGB-PN-WD
MS-RGB-HB-AGB-SN-WD
When a red giant's outer atmosphere drifts away, it becomes:
Expanding nebula
Planetary nebula
White dwarf cloud
Planetary cloud
Why will a low/medium mass star will never create a Black Hole
Collapse is too slow
Collapse is too fast
Electron degeneracy
Proton degeneracy
At the RGB stellar evolution phase the stars have a degenerate core and fuse helium in a shell
True
False
There are evidences that at the center of galaxies live:
Super massive black hole
Stellar black hole
Cosmic black hole
Compact star
