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Astronomy
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Questions (9,627)
Use this paragraph: In a scale model of the solar system, the sun is placed at the center and the planets are shown orbiting in
14 answers
asked by
CarleyPlayz
3,222 views
Why are redshift and blueshift important to astronomers?(2 points) Responses To be able measure the mass of a Galaxy To know if
1 answer
asked anonymously
26 views
what evidence supports the big bang theory?
7 answers
asked by
xiomara
5,897 views
An astronomer notices increased chances of solar energetic particles in the ionosphere. Who should be notified of this
4 answers
asked by
Julian
1,104 views
What is the maximum possible distance between Mars and Neptune?
7 answers
asked by
Jeff
7,343 views
How did Kepler develop his second law of motion?(1 point)
Responses He invented a telescope that was strong enough to view all
25 answers
asked anonymously
125 views
The distance from Earth of the red supergiant Betelgeuse is approximately 643 light-years. If it were to explode as a supernova,
4 answers
asked by
Anonymous
3,868 views
Animation shows a complete revolution of the earth around the sun. What happens during this time
5 answers
asked by
Sally
753 views
The Earth rotates from ______ to _____, giving rise to the apparent motion of the Sun each day.
(1 point) Responses north to
1 answer
asked by
lover
31 views
The International Astronomical Union (IAU) defines a constellation by its (1 point)
A. star pattern B. Greek name C. brightest
2 answers
asked by
wiggle
249 views
Which spectral class does a star fit into if it has a surface temperature of 20,000 K?
4 answers
asked by
Jinny
751 views
Select the correct answers from the list.(1 point)
Comparing temperature changes at different stages of the universe's life
7 answers
asked by
Connexus Gal
2,243 views
The Moon orbits Earth every 27.3 days. Determine the angular velocity of the Moon, in degrees per day and in radians per day.
The
6 answers
asked by
Anonymous
6,093 views
Which shape does our galaxy have? (1 point)
Responses irregular spiral elliptical circular
6 answers
asked by
Captain Bella
1,062 views
Suppose a planet is discovered orbiting a distant star with 13 times the mass of the Earth and 1/13 its radius. How does the
4 answers
asked by
Cooper
2,736 views
Select the correct answer from the list.(1 point) To form a nebula, Select Answer pulls matter together or causes Select Answer
15 answers
asked anonymously
178 views
How has scientific understanding about the composition of the universe changed over time? Select the two correct answers.(1
10 answers
asked by
Anonymous
7,127 views
Use the table to answer the question.
Planet Estimated Mass of Planet (1023 kg) W 6.4 X 3.3 Y 59.7 Z 48.7 Assuming these planets
10 answers
asked by
Lara sampson
5,725 views
Suppose the moon rotated on its axis just as quickly as Earth. Would you still always see the same side of the moon from Earth?
*
29 answers
asked by
Sarah
15,525 views
The Moon has a diameter of about 3480 km and an orbital radius of about 384 400 km from the centre of Earth. Suppose that the
5 answers
asked by
Anonymous
6,078 views
Which type of star is in spectral class K and has a luminosity of 10^6
5 answers
asked by
alex ;w;
2,428 views
The period of revolution of a planet around the sun is the time it takes for the planet to complete one orbit of the sun. The
5 answers
asked by
Larry
5,607 views
The Hale Telescope has a mirror of diameter 5.1 meters and a focal length of 16.9 meters. The Keck 1 Telescope has a mirror of
4 answers
asked by
Anonymous
1,295 views
Use the scenario to answer the question.
An astronomer discovers a new galaxy using a telescope. The astronomer wants to
5 answers
asked by
please help me
4,760 views
Astronomers measure large distances in light-years. One light-year is the distance that light can travel in one year, or
6 answers
asked by
Anime_is_cool
2,421 views
Which statements comparing the Sun and a red supergiant are true? Select the two correct answers.(1 point)
Responses The Sun's
3 answers
asked by
sleepy
86 views
Which of the following describe Aristotle's model of the solar system? Select the three correct answers.(2 points)
Responses Each
2 answers
asked anonymously
82 views
Which factors are most likely to affect whether a galaxy will evolve by merging with a second galaxy? Select the two correct
3 answers
asked anonymously
72 views
A model of the solar system shows the sun as a loaf of bread. What size is everything else in this model?(1 point)
Responses the
3 answers
asked by
that one dumb kid
62 views
What will happen when the Andromeda galaxy and the Milky Way galaxy collide sometime in the next five billion years?
(1 point)
1 answer
asked by
Blue
57 views
In space, the angular resolution of the Keck telescope is govererned by the diffraction limit.
How far away could you read the
4 answers
asked by
Titos
4,532 views
"Earth is the third planet from the sun."
Why is this a bad claim for a persuasive text?
22 answers
asked by
gray
4,905 views
Yall check my answers please?
1. A spiral galaxy can be described as what type of shape?(1 point) oval triangular no distinct
16 answers
asked by
Help you, I will.
5,523 views
What galaxy is the Earth part of?
Milky Way The Milky Way can be classified as which type of galaxy? Spiral What is the name of
7 answers
asked by
Natalie
2,018 views
Which orbital shape did most scientists in the early 1600s think the planets of our solar system have?
10 answers
asked by
Lukethedrifter
3,169 views
Galaxies and The Universe Quick Check
5 answers
asked by
Anonymous
1,582 views
Some quasars (quasi-stellar radio source) have the largest red shifts ever observed. If this phenomenon is due to cosmic
5 answers
asked by
Amy
1,473 views
The percentage of the moon's surface that is visible to a person standing on the Earth varies with the time since the moon was
4 answers
asked by
Jillian
4,732 views
Uranus is approximately 2.74 x 10^9 km away from the Sun at perihelion and 3.00 x 10^9 km at aphelion. Find the eccentricity of
4 answers
asked by
Cameron
1,279 views
Drag each item to the correct location.
geocentric: Heliocentric: A. includes five planets B. includes eight planets C. the
2 answers
asked anonymously
77 views
Question 1 A)How do emission and reflection nebulae differ?(1 point) Responses contain remnants of stars contain remnants of
7 answers
asked by
pipsqueaks
161 views
Which sentence about galaxies provides evidence of universe expansion that supports the Big Bang Theory?(1 point)
Responses
3 answers
asked by
billy bob joe
183 views
Which statement best describes the movement of galaxies in the universe?(1 point)
Galaxies are moving toward each other, with
3 answers
asked anonymously
49 views
Which are accurate statements about dark matter? Select the two correct answers.(1 point) Responses Scientists have hypotheses
3 answers
asked by
kitty face
68 views
How do emission and reflection nebulae differ?(1 point)
Responses hard line edges hard line edges interactions with light
3 answers
asked by
sleepy
90 views
Why do the stars and the constellations in the sky appear to change positions throughout the night and throughout the year?(1
2 answers
asked anonymously
87 views
Which does Kepler’s first law state about the orbits of planets in our solar system? (1 point)
Responses Their distance from
3 answers
asked anonymously
94 views
Identify a significant idea from the Scientific Revolution.(1 point) Responses round Earth theory: Earth is not flat. round
1 answer
asked by
Johovah_Witness
33 views
5-10 other questions about black holes
1 answer
asked anonymously
16 views
Properties of Stars Quick Check
1 of 5 Items Question Which measurement of a star depends on the distance of the star from earth?
10 answers
asked by
john
1,916 views
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