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The Solar System and Stars Flashcards | StudBud
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The Solar System and Stars
The Solar System and Stars
28 terms
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To cover chapter 11 and 12-1
Flashcards
28 cards
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Practice quiz
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Questions
28
Answers
1
The coolest stars (at 3,000 degrees Kelvin) are what color?
red
orange
blue
white
2
Our Sun has an average temperature and luminosity, so it is in the __________________
red giant range on the H-R diagram
white dwarf range on the H-R diagram
main sequence range on the H-R diagram
supergiant range on the H-R diagram
3
True or False: The distance between Venus and the Sun is referred to as one astronomical unit.
True
False
4
One revolution is equal to
one Earth day...24 hours
one Earth year...365 days
one trip around the moon
5
Solar energy trapped by gases in Venus's thick atmosphere causes
its slow rotation
a cooling effect
the Greenhouse Effect
acid rain
6
The smallest planet in the Solar System is:
Mars
Pluto
Mercury
Venus
7
Which planets have no moons
Venus, Mars
Mercury, Venus
Mercury, Pluto
8
On which planet is evidence that water may have caused long channels to form?
Mercury
Mars
Saturn
Venus
9
An AU stands for:
Astronomy Unit
Astrology Understanding
Astronomical Unit
Asteroid Unidentified
10
Earth is part of the ________
Kuiper Belt
Sombrero Galaxy
Oort Cloud
Milky Way Galaxy
11
One rotation on Earth is
equal to 365 days
equal to one moon revolution
equal to one day
equal to one year
12
This planet is sometimes called Earth's twin
Mars
Uranus
Venus
Mercury
13
Which planets have ring systems?
All outer gas giants
only Saturn
Jupiter and Saturn
Neptune and Saturn
14
The big bang theory supports the idea that our Sun formed from a cloud of gas and dust...
billions of years ago
thousands of years ago
millions of years ago
15
Why is Venus the hottest planet, although it is not closest to the Sun?
It has a thick atmosphere that causes the Greenhouse Effect.
It has no atmosphere causing extreme temperatures.
It has a large elliptical orbit
16
Which planet is tilted on its side?
Uranus
Saturn
Mars
Neptune
17
A measure of a star's observed luminosity from Earth is called its
size in AUs
apparent magnitude
Position in space
absolute magnitude
18
Which statement best describes why AU's are used to measure distances in the Solar System?
It is more convenient to use smaller numbers.
It is better to use scientific notation.
It is more accurate than using kilometers.
19
A comet is a(n) _______
asteroid piece
chunk of rock and metal
large body of ice and rock
small star
20
A meteor that falls to Earth is called a(n)
Meteoroid
Asteroid
shooting comet
Meteorite
21
About 90% of the stars in space are
Nebula
main sequence stars
white dwarfs
supergiants
22
Small pieces of rock that enter the atmosphere, then fall to hit the Earth are called
Meteors
Meteoroids
Meteorites
shooting stars
23
Which of the following is NOT a constellation
Leo
Betelgeuse
Orion
Vega
24
Ganymede and Triton are two of the many moons that orbit the OUTER PLANETS.
TRUE
FALSE
25
Pluto has
one moon nearly half its size
3 moons
a solid rocky surface
all of the above
26
Small pieces of rock that burn up in the Earth's atmosphere are called
asteroids
meteroids
meteorites
meteors
27
Where do Comets originate?
The Asteroid Belt
space debris, such as dust and ice
The sun
the Oort cloud
28
Which planet has the largest volcano of the Solar System (Olympus Mons)?
Jupiter
Earth
Mars
Neptune
