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Astronomy lesson13
Apologia Astronomy lesson 13
| Question | Answer |
|---|---|
| One of the most important stars is the North Star, also called _________________. | Polaris |
| Polaris got its name because the _____________ ___________ is always pointed toward it. | North Pole |
| A ______________ is an object similar to our Sun which produces lots of energy. | star |
| An __________________ is a set of stars that form an easily recognizable shape. | asterism |
| Polaris is part of which asterism? | Little Dipper |
| The Little Dipper is part of which constellation? | Ursa Minor (which means "little bear") |
| The Big Dipper is part of which constellation? | Ursa Major (which means "great bear") |
| The brightest star in the sky is _____________. | Sirius |
| When one star orbits another star, it is called a double star system. Another name for this is a ________________ __________________________. | binary star system |
| Stars that are dying are called _____________________________ stars. | white dwarf |
| As a star runs out of fuel and begins to die, it starts to collapse in on itself. Sometimes the star has a lot of mass which generates a lot of heat and causes the star to explode. This explosion is called a __________________. | supernova |
| If the core of a dying star is left behind and has a large mass, it will start to pull everything in with its gravity causing a _______________ _____________. | black hole |
| Have scientists ever seen a black hole? | No, because there is no light coming from a black hole, they cannot see if with a telescope. |
| Have scientists ever seen a supernova? | Yes, in February 1987, three astronomers in different areas saw a supernova. |
| The "footprint" left behind by a supernova contains gases, dust and debris, and it is called a __________________. | nebula |
| __________________ ___________ can have changes in temperature and energy output over time. Thankfully, our Sun is not like this! | Variable stars |
| Stars can be categorized in three ways. Name these ways. | (1)Hot or cold, (2) Bright or dim, and (3) Big or small |
| Stars are assigned ___________________ to show how hot or cold they are. | letters |
| Stars are assigned __________________ to show how bright or dim they are. | numbers |
| Stars are assigned _______________ __________________ to show how big or small they are. | Roman numerals |
| Our Sun is categorized as a ______________. (This answer should include the letter, number and Roman numeral measures for the Sun.) | G-5V |
| The largest star we know about is named _______________. | Betelgeuse |
| What does the term "light year" mean? | It is the distance that light can travel in a year. |
| What is the speed of light? | 186,000 miles per second |
| List the four types of galaxies. | (1) spiral, (2) elliptical, (3) lenticular and (4) irregular |
| Earth is in a galaxy named the ____________ __________. | Milky Way |
| The Milky Way is what type of galaxy? | spiral |
| ______________________ are patterns formed in the sky by stars. | Constellations |
| Many people believe that God created the constellations to tell the story of _______________. | Jesus |
| __________________ is a religion in which people put their faith in the stars and check their "horoscopes" daily. | Astrology |
| Astrology is basically a form of ____________ ________________. | idol worship |
| A star map, also known as a _________________, will help you find constellations in the sky, however you should get one based on your latitude in order for it to be accurate. | planisphere |
Created by:
amcollins
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