Stars
Quiz by Shari Lord
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27 questions
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- Q1Celestial bodies can be calssified based on their sizes. Which of the following is the smallest?planetred supergiantblue supergiantred giant30s
- Q2One way to compare the objects in space is by their relative sizes. Which of the following correctly lists the objects in space in order from largest to smallest.galaxy, universe, planet, staruniverse, galaxy, planet, staruniverse, galaxy, star, planetgalaxy, universe, star, planet30s
- Q3If a star is 300 light-years from Earth, how long does it take light from the star to reach Earth?300 days300 years300 hours300 light-years30s
- Q4A scientist finds a star that is located far from Earth. Upon closer examination, she discovers that the star appears to have several smaller bodies orbiting it. Which of these terms would the scientist use to describe her findings?a solar systema planeta moona galaxy30s
- Q5What is the term for sum of all space, matter, and energy that exist, that have existed in the past, and that will exist in the future?the solar systemthe starsthe galaxythe universe30s
- Q6Which of the following terms is used to describe several planets orbiting a star?solar systemgalaxyuniverseconstellation30s
- Q7Astronomers use the light-year to describe the relationship between objects in space. For example, the Andromeda galaxy is 2.5 million light-years from Earth. Which of the following units is most similar to the light-yeardegrees Celsiuskilometergramsecond30s
- Q8A galaxy contains stars, gas, and dust. This matter must be held together or the galaxy will break apart. What is responsible for holding the stars, gas, and dust together in a galaxy?gravitylightheatfriction30s
- Q9The sun is much larger than the moon. However, as viewed from Earth, the sun and moon appear to be the same size. Why do the sun and moon appear to be the same size when viewed from Earth?moon is much brighter than the sunmoon is much hotter than the sunmoon is much denser than the sunmoon is much closer to Earth than the sun.30s
- Q10An astronomer uses a telescope to observe a star. She observes that the color of this star is similar to the color of the sun. Therefore, she infers that the star and sun have similar sizes and surface temperatures. Using this information, what can the astronomer conclude about the star?star is medium in sizestar is hotter than most other stars in galaxystar is brighter than most other stars in galaxystar is a white dwarf30s
- Q11One way to compare the object of space is by their relative size. Which of the following is larger than a galaxy?staruniverseplanetsolar system30s
- Q12If a star is 3 light-years from Earth, how long does it take light from that star to reach Earth?3 minutes3 light-years3 years3 hours30s
- Q13Which of the following is part of the universe?all existing matterall existing spaceall existing energyall existing energy, matter, and space30s
- Q14While planets are smaller than stars, planets are generally larger than which of the following?solar systemstars they orbit aroundother bodies in the solar systemgalaxy they are contained within30s
- Q15How do galaxies range in size?from dwarf galaxies with approximately 100 million stars to giant galaxies with approximately 1 trillion starsfrom the smallest speck of dust to infinityfrom as small as the Milky Way to as large as the universeas large as the distance from Earth to the sun and back30s