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Astronomy - Stars, Sun, Planets Flashcards | StudBud
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Astronomy - Stars, Sun, Planets
Astronomy - Stars, Sun, Planets
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Basic astronomy of stars and our solar system #stars #planets #sun
Flashcards
42 cards
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Questions
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Answers
1
When really massive stars die, they cause an explosion called by what name?
Supernova
Nova
Chevy Nova
Nuclear bomb
2
At the very end of its life, a star like our Sun will become a cosmic diamond, called a __?
Black hole
White dwarf
Neutron star
Red dwarf
3
The hottest stars are which color on their surface?
White
Blue
Yellow
Red
4
When a really massive star goes supernova, it might leave behind a corpse called a ___.
White dwarf
Black dwarf
Main sequence star
Neutron star
5
Which section of the HR Diagram shows white dwarf stars?
D
A
C
B
6
Our own Sun is which color at its surface?
Blue
Red
Yellow
White
7
Which planet has the most incredible, largest ring system?
Jupiter
Saturn
Neptune
Uranus
8
The Voyager mission, and also the New Horizons mission, used which planet for a gravity assist?
Neptune
Mars
Venus
Jupiter
9
What features have been found on all of the rocky planets, and count as evidence of accretion?
Mountains
Volcanoes
Rocky crust
Craters
10
A star exists because of an equilibrium between two forces: gravity and what?
Pressure
Fission
Crushing
Fusion
11
How far is it from the Sun to Earth?
150 billion kilometers
150 kilometers
150 million kilometers
150 thousand kilometers
12
Which of the following was NOT a challenge that Voyager had to face?
Jupiter's magnetic field
Kuiper belt objects
Asteroids
Long-range communication
13
When a star begins to produce ____ in its core, it is only minutes away from supernova.
Iron
Hydrogen
Oxygen
Helium
14
The light from the Sun takes how long to reach the Earth?
8 days
8 years
8 minutes
8 months
15
Which number is closest to the estimated number of stars in the universe?
1 million
100 billion
Many Trillions
1 billion
16
Which planets are mostly small and rocky?
Inner
Outer
17
Which planet is sometimes called Earth's sister planet, as it is almost the same size as Earth?
Venus
Mercury
Pluto
Mars
18
Which planet has the largest range of temperatures across its surface?
Mercury
Earth
Mars
Venus
19
Which section of the HR Diagram shows the Main Sequence stars?
D
B
A
C
20
Which planet is known for its "great red spot"?
Jupiter
Uranus
Saturn
Neptune
21
According to our videos, everything in the universe is made of what?
Star dust
Nebulae
God's words
Energy
22
A typical star spends most of its life cycle toward the middle of the HR diagram, as a ___?
Main sequence star
Red giant star
White dwarf star
Supergiant star
23
Which planet is the largest in the solar system?
Neptune
Uranus
Jupiter
Saturn
24
The least hot stars are which color?
Yellow
Red
White
Blue
25
Which planets have extremely thick, dense atmospheres?
Inner
Outer
26
Which of these planets has a deep, blue color, similar to the color of Earth's oceans?
Mars
Venus
Neptune
Uranus
27
Which of these planets is the second-brightest object in the night sky?
Mars
Mercury
Venus
Saturn
28
Which NASA mission arrived at Pluto in 2015?
Voyager
New Horizons
Cassini
Pluto Express
29
What is the name for dark spots on the surface of the Sun?
Freckles
Sunspots
Fraunhaufer spots
Polkadots
30
How often is it possible to send a mission similar to Voyager, to all four giant planets?
Every 25 years
Every 10 years
Every 1,000 years
Every 175 years
31
According to theories of star life cycles, our Sun will one day become a huge star called __?
A red giant
A blue giant
A supergiant
A hypergiant
32
Which group of planets are furthest from the Sun?
Giant planets
Rocky planets
33
Which planet is said to orbit the Sun, "spinning on its back"?
Uranus
Jupiter
Saturn
Neptune
34
How do stars produce their energy?
By nuclear fission
By burning coal
By nuclear fusion
By eating food
35
What is the name given to the process that scientists think led to planet formation?
Acceptance
Occlusion
Accretion
Accordions
36
Which planets are made mostly of rock and iron?
Inner
Outer
37
Which section of the HR Diagram shows red giant stars?
A
C
B
D
38
The recipe for making a star includes three things: hydrogen, time, and what else?
Iron
Dark energy
Solar wind
Gravity
39
Which planet is sometimes called the "red planet"?
Venus
Pluto
Mars
Mercury
40
When hydrogen atoms fuse to create helium, they also release what?
Pure energy
Gold
Iron
Gravity
41
About how many Earths would fill up the inside of the Sun?
1 million
1 thousand
1 billion
1 hundred thousand
42
Which of these planets can only be seen through a telescope?
Neptune
Mars
Jupiter
Venus
