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WorksheetsAstronomy17
Total questions: 20
Worksheet time: 16mins
Name
Class
Date
1.
Large bodies that revolve around the sun are ________
a)
Planets
b)
Comets
c)
Solar Systems
d)
Asteroids
2.
What causes Earth's seasons?
a)
the tilt of Earth's axis
b)
Earth's rotation
c)
the revolution of the Moon
d)
Earth's distance from the Sun
3.
The rotation of Earth on its axis causes the pattern of _____.
a)
night and day
b)
constellations
c)
Earth's seasons
d)
the phases of the moon
4.
The inner planets are:
a)
Jupiter, Earth, Mars, Mercury
b)
Saturn, Uranus, Mars, Earth
c)
Earth, Pluto, Neptune, Mars
d)
Mercury, Venus, Earth, Mars
5.
The moon is a natural ______ of Earth.
a)
comet
b)
axis
c)
satellite
d)
space probe
6.
Earth and the other planets closest to the Sun are made mostly of _______
a)
gas
b)
metal
c)
water
d)
rock
7.
A star is born when ________________ begins to happen.
a)
nuclear fusion
b)
nuclear abrasion
c)
crying
d)
nuclear fission
8.
The only force acting on the nebulae is ________.
a)
thermal
b)
singular
c)
gravity
d)
microscopic
9.
a spinning neutron star that emits rapid pulses of energy
a)
red giant
b)
pulsar
c)
black hole
d)
supernova
10.
What color are the hottest stars?
a)
red
b)
yellow
c)
orange
d)
blue
11.
Brightness of a star as seen from Earth
a)
parallax
b)
apparent magnitude
c)
absolute magnitude
d)
spectrum
12.
All stars the main sequence are middle aged. That is, they are fusing ________ into ________ in their cores.
a)
hydrogen into helium
b)
helium into carbon
c)
oxygen into iron
d)
helium into hydrogen
13.
What is the correct life cycle of a star like our Sun?
a)
Nebula, main sequence, red supergiant, supernova, black hole, neutron star
b)
nebula, main sequence, red giant, planetary nebula, white dwarf, black dwarf
c)
Main sequence, white dwarf, red giant, red supergiant, nebula
d)
Nebula, main sequence, brown dwarf, white dwarf, black dwarf
14.
What determines if a star becomes a giant or a supergiant?
a)
star size
b)
star temperature
c)
star color
d)
star luminosity
15.
What stage of the life cycle of a star is this?
a)
Main Sequence
b)
Red Giant
c)
Black Hole
d)
Neutron star
16.
Which star is considered a Main Sequence Star?
a)
A
b)
B
c)
C
d)
D
17.
What is found on the x axis of an H-R diagram?
a)
Luminosity
(or brightness)
(or brightness)
b)
Temperature
c)
Star Size
d)
Distance
18.
When do lunar eclipses occur?
a)
When Earth passes between the moon and sun.
b)
When the moon passes between the Earth and sun.
c)
When the moon makes half of the Earth cold.
d)
When Mars gets too close to the sun and causes an eclipse.
19.
All stars begin as ...
a)
red giants
b)
nebulae
c)
supernova
d)
white dwarf
20.
What is a sunspot?
a)
An area of the sun that is cooler
b)
An area of the sun that is hotter.
c)
Spots in your eyes when you look at the sun.
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