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WorksheetsGalaxies and Stars
Total questions: 22
Worksheet time: 1hrs 8mins
Galaxies are composed of (best answer)
stars
stars and gas
stars, dust, and gas
stars, dust, and gas held together by gravity
The Milky Way Galaxy is a
spiral
lenticular
elliptical
irregular
The unit used to measure distances within our solar system
kilometers
miles
light year
astronomical units
The unit used to measure distances between objects like stars or galaxies is
kilometers
miles
light years
astronomical units
Light years are a measure of
time
speed
distance
light
A light year is...
The speed light travels
How long it takes light to get to you from the sun
The distance light can travel in a year
How many years it takes light to be emitted
What color are the coolest stars?
blue-white
yellow
orange
red
The brightness of a star as seen from Earth is
apparent brightness
absolute brightness
parallax
reflective brightness
The brightness the star would have if it were a standard distance from earth is
apparent brightness
absolute brightness
brightness
candid brightness
What color of star is the hottest?
blue
red
yellow
orange
The color of a star depends on its
size
temperature
shape
magnitude
A very bright star can seem to be dimmer because it is
further away
cooler in temperature
very close
shy
An astronomical unit is...
The average distance between the Earth and the Sun
The average distance between the Sun and Neptune
The diameter of the sun
The time it takes light to travel across our solar system
Astronomical units are used for
Distances within a solar system
Distances between solar systems
Distances within galaxies
Distances between galaxies
_______________ would be the best unit to use to measure the distance between the asteroid belt and Pluto
Astronomical units
Light seconds
Light years
Parsecs
_______________ would be the best unit to use to measure the distance between the our sun and Proxima Centauri (our nearest star neighbor).
Astronomical units
Light seconds
Light years
