Describe Components of the Universe Including Stars Nebulae and Galaxies and Use Models Such as the Hertzsprung-Russell
Authored by Charles Martinez
Science
8th Grade
NGSS covered
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The spectral class of four stars are shown in comparison with a Hertzsprung-Russell diagram. Based on the information, which star is most like the sun?
Star 1
Star 2
Star 3
Star 4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which statement best describes a galaxy?
A cloud of gas that is the birthplace of stars
A system of billions of stars, gas, and dust held together by gravity.
A ball of plasma that experience nuclear fusion in its core.
A mass of dust and ice that orbits a star in an elliptical pattern.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which statement about stars is correct?
Star formation begins in a nebula.
White dwarfs become main-sequence stars when they gain mass.
Supergiants are stars that can absorb black holes.
Main-sequence stars are formed by comets.
Tags
NGSS.HS-ESS1-3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Most stars in the universe fit into one of the four areas on this Hertzsprung-Russell diagram. Which area of the diagram represents the white dwarfs?
Area M
Area X
Area P
Area Z
Tags
NGSS.HS-ESS1-3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In November 2013 an object orbiting the sun seemed to disappear behind the sun. When a satellite did not detect the object, astronomers thought that the object had been destroyed when it passed close to the sun. However, when another satellite detected a small, bright object with a fan-shaped tail, astronomers proposed that the object was not destroyed. What type of object were astronomers most likely observing?
A comet
An asteroid
A meteor
A nebula
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Barnard’s Star is about 5.9 light-years from the sun. The star has an approximate temperature of 2,800 K. Based on the diagram, what spectral class does Barnard’s Star belong to?
Spectral class O
Spectral class B
Spectral class A
Spectral class M
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The Hertzsprung-Russell diagram shows how the sun is classified among the stars. A star that is several thousand times brighter than the sun with a temperature lower than 4,000 K would be classified as —
a main-sequence star in spectral class B
a supergiant in spectral class K
a main-sequence star in spectral class K or M
a white dwarf in spectral class B
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