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Astronomy Mega Review Flashcards | StudBud
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Astronomy Mega Review
Astronomy Mega Review
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Review for my astronomy unit, designed for an alternative education class.
Flashcards
22 cards
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Practice quiz
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Host live
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Questions
22
Answers
1
Jupiter's moon, Io, is the most geologically active body in the solar system because its proximity to Jupiter results in
tremendous tidal distortions.
really nice oceans.
droopy mountains.
perfectly timed earthquakes.
2
According to Einstein’s General Theory of Relativity, light cannot escape from a black hole because
The speed of light slows to a stop in the black hole
There was never any light inside the black hole in the first place
The black hole’s massive gravity has curved space near the black hole
Black absorbs all light
3
Astrology is based on:
Careful, empirical observations of the skies.
Mathematical projections and conjectures.
The belief that planets and constellations directly affect human affairs.
4
The reason we know that dark matter exists around our galaxy is because
it is predicted by Einstein’s General Theory of Relativity
of Its gravitational influence on the orbital speed of visible bodies
Because of the incredibly dense composition of neutron stars
Because visible light is unable to penetrate the galaxy’s heavy dust
5
What is the number of known moons of Jupiter?
16
213
4
79
6
The resolution of a telescope refers to its ability to distinguish between two objects that are close together.
True
False
7
The Sun's differential rotation results in
centripetal forces that cause nuclear fusion in the core
confusion about which side of the Sun is facing us at any time
folding and twisting of the magnetic lines of force
centrifugal forces that break the solar wind
8
The magnetic field of Earth
deflects radiation
all of the above
helps maintain our atmosphere
protects us from the solar wind
9
The Roche limit represents
the minimum distance a moon can be from a planet without being torn apart.
the greatest distance a moon can be from its planet and still stay in orbit
the minimum diameter of a planet's ring system.
when you just can't take it anymore.
10
Uranus is a terrestrial planet.
False
True
11
The surface of Mars can be roughly divided into the rugged southern highlands and the smoother northern lowlands.
True
False
12
The most unusual feature of Uranus is
the high cost of health care.
the absence of any known magnetic field.
its ring system.
it's extreme tilt on its axis.
13
The interior structure of the Earth has been determined with the aid of
gravitational fluctuations during holidays.
analysis of seismic waves from earthquakes.
direct observations from deep mines.
hidden messages in the plays of William Shakespeare.
14
The terrestrial planets all have solid surfaces.
False
True
15
Jupiter is a gas giant.
True
False
16
The interstellar medium is
Always dark
Distributed with uniform density throughout space
Always visible
None of the above
17
The inner planets are different from the outer planets because
they are small and rocky.
they do not rotate.
they are covered in fluid and mist.
18
The basic source of all of Earth's weather is uneven heating of the Earth's surface by the sun.
False
True
19
Telescopes that can only function from above the Earth's atmosphere include:
Gyroscopes, binoculars, and magnification telescopes.
Invisible, infrared, and optical telescopes.
Ultraviolet, x-ray, and gamma ray telescopes
20
Auroras are usually seen near the polar regions because
Earth's magnetic field channels charged particles from the Sun to the poles
people's eyes are dried out and you can see the static electricity.
radiation from the core of the Earth vents at the poles.
21
The force creating heat in the center of a protostar is
Centrifugal force
Gravitational contraction
Hydrogen fusion
Electromagnetism
22
The nuclear fusion process in the Sun
changes the Sun's hydrogen into helium
takes place in the atmosphere
breaks helium down into hydrogen
takes place in the corona
