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Total questions: 15
Worksheet time: 8mins
What is the most common element in the early universe?
helium
iron
gold
What type of galaxy do we live in?
elliptical galaxy
spiral galaxy
irregular galaxy
What is the distance that light travels in one year?
nebula
disk
light year
How big is white dwarf?
same size of red star
about the size of the Earth
same size of the milky way.
H-R diagrams measure both star's _____and _________.
luminosity and surface temperature
mass and size
location and type
Which stars are young stars that convert hydrogen into helium in their cores.?
white dwarf star
main sequence star
protostar
In main sequence stars, what happens during nuclear fusion.
Larger amounts of mass are formed.
Hydrogen atoms combine to form helium.
Helium atoms combine to form hydrogen
Why do stars appear so much smaller than the sun?
They are dwarf stars.
They are so far away.
They are very small.
Where is the milky way located in the universe?
Earth
Virgo cluster
Andromeda
What is the name of the object in the center of the Milky Way?
Black hole
Sagittarius A*
Nebula
What is the name of the region around outside of the milky way?
Halo
Disc
Hole
Where do we find the densest region of stars within the Milky Way?
Halo
Bulge
Nebula
How are galaxies held together?
gas
dust
gravitational attraction
Then number of arms of milky way.
3
6
4
It is known as dead star.
white dwarf star
sun
neutron star
