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Q 1/22
Score 0
Space and all the matter and energy in it.
30
Universe
Q 2/22
Score 0
The sun and all of the planets and other bodies that travel around it.
30
Solar System
22 questions
Q.
Space and all the matter and energy in it.
1
30 sec
Q.
The sun and all of the planets and other bodies that travel around it.
2
30 sec
Q.
A relatively large spherical body that orbits a star.
3
30 sec
Q.
A large celestial body that is composed of gas and that emits light; the sun is a typical star.
4
30 sec
Q.
A collection of stars, dust, and gas bound together by gravity.
5
30 sec
Q.
A large cloud of gas and dust in interstellar space; a region in space where stars are born.
6
30 sec
Q.
The distance that light travels in one year; about 9.46 trillion kilometers.
7
30 sec
Q.
The brightness of a star as seen from Earth.
8
30 sec
Q.
The actual brightness of an object such as a star.
9
30 sec
Q.
A measure of how bright a star would be if it were seen from a standard distance.
10
30 sec
Q.
A small, hot, dim star that is the leftover center of an old sunlike star.
11
30 sec
Q.
A gigantic explosion in which a massive star collapses and throws its outer layers into space.
12
30 sec
Q.
A celestial body that orbits the sun, is round because of its own gravity, but has not cleared its orbital path.
13
30 sec
Q.
A star that has collapsed under gravity to the point that the electrons and protons have smashed together to form neutrons.
14
30 sec
Q.
Hertzsprung-Russell diagram, a graph that shows the relationship between a star's surface temperature and absolute magnitude.
15
30 sec
Q.
The location on the H-R diagram where most stars lie; it has a diagonal pattern from the lower right (low temperature and luminosity) to the upper left (high temperature and luminosity).
16
30 sec
Q.
The distance from any point on a wave to the corresponding point on the next wave.
17
30 sec
Q.
All of the frequencies or wavelengths of electromagnetic radiation.
18
30 sec
Q.
A range of electromagnetic radiation that is ordered by wavelength or frequency, such as the band of colors that is produced when white light passes through a prism.
19
30 sec
Q.
A shift toward the red end of the spectrum; occurs in the spectrum of an object when the object is moving away from the observer.
20
30 sec
Q.
The theory that all matter and energy in the universe was compressed into an extremely small volume that 13 billion to 15 billion years ago exploded and began expanding in all directions.
21
30 sec
Q.
The electromagnetic radiation left over from the formation of the universe.
