front 1 What are the two types of eclipses? | back 1 Solar and Lunar |
front 2 What is syzygy? | back 2 The alignment of the Sun, Earth, and Moon |
front 3 What is an eclipse? | back 3 When an astronomical object casts a shadow on another |
front 4 How many days is the Synodic Month? | back 4 29.5 days |
front 5 Our moon is the _________________ largest moon. | back 5 Fifth |
front 6 What is a supermoon? | back 6 When the moon is closest to the Earth AND the largest full moon of the year |
front 7 What does waxing mean? | back 7 Growing |
front 8 In what phase does the Moon appear dark? | back 8 New Moon |
front 9 What causes the Moon to be illuminated? | back 9 It reflects light from the Sun |
front 10 How was the Moon created? | back 10 An object crashed into Earth creating debris that became the Moon |
front 11 Which planet has a rotational axis nearly parallel to its orbital path? | back 11 Uranus |
front 12 What is an equinox? | back 12 When there are equal hours of day and night |
front 13 What causes Earth’s seasons? | back 13 Earth’s tilted axis |
front 14 When is Earth closest to the Sun? | back 14 January |
front 15 How many tails do comets have? | back 15 Two |
front 16 Why does the Moon have more visible craters than Earth? | back 16 The Moon lacks an atmosphere to burn up incoming meteors |
front 17 A “shooting star” is more accurately called what? | back 17 Meteor |
front 18 Where are asteroids mainly found? | back 18 Kuiper Belt |
front 19 What shape is an asteroid? | back 19 Irregular |
front 20 What do terrestrial and gas giants have in common? | back 20 They all have a rocky core |
front 21 Which planet is closest to the Sun? | back 21 Mercury |
front 22 What kind of planets do we have? | back 22 Terrestrial and Gas Giants |
front 23 What is the Oort cloud? | back 23 The furthest boundary of our solar system |
front 24 What is Pluto? | back 24 A dwarf planet |
front 25 What is NOT a requirement for an object to be considered a planet? | back 25 Have a moon |
front 26 How many planets are in the solar system? | back 26 8 |
front 27 What is precession? | back 27 The change in direction of a planet’s axis |
front 28 Which constellations can you see if you live on the Equator? | back 28 The ecliptic, northern, and southern constellations |
front 29 What is an asterism? | back 29 A grouping of stars that is not an official constellation |
front 30 What does the term “constellation” mean? | back 30 Grouping of stars |
front 31 Which of the following is NOT a star color? | back 31 Green |
front 32 Which of the following characteristics CANNOT be determined using an H-R diagram? | back 32 Distance from Earth |
front 33 Where on an H-R diagram are most stars located? | back 33 The main sequence |
front 34 What characteristics are plotted on H-R diagrams? | back 34 Luminosity versus surface temperature |
front 35 What is the fourth state of matter? | back 35 Plasma |
front 36 Which layer of the Sun can only be seen during a total solar eclipse? | back 36 Corona |
front 37 Which layer of a star do we see? | back 37 Photosphere |
front 38 What is a binary star system? | back 38 A star system with two stars |
front 39 What is our Sun’s name? | back 39 Sol |
front 40 What is a star? | back 40 A sphere of plasma held together by its own gravity undergoing nuclear fusion |
front 41 What is NOT a galaxy shape? | back 41 Spherical |
front 42 Approximately how wide is our galaxy? | back 42 100,000 light years |
front 43 What are star clusters? | back 43 Groups of stars that developed together from the same nebula |
front 44 What shape is our galaxy? | back 44 Spiral |
front 45 What is our galaxy called? | back 45 Milky Way |
front 46 Currently, the universe is… | back 46 expanding |
front 47 What caused the early materials to clump together? | back 47 Gravity |
front 48 When a star is moving away from an observer, the light is… | back 48 red-shifted |
front 49 As the universe expanded it… | back 49 cooled down. |
front 50 Before the Big Bang, which of these existed? | back 50 nothing |
front 51 About how old is the universe? | back 51 14 billion years |
front 52 Why was the discovery of Jupiter’s moons so important? | back 52 It supported the heliocentric model |
front 53 Where is Earth in the heliocentric model? | back 53 Orbiting around the middle of the solar system |
front 54 Who published the theory of gravity? | back 54 Newton |
front 55 Who was the first astronomer to use a telescope for astronomy? | back 55 Galileo |
front 56 Which astronomer most influentially suggested a heliocentric model? | back 56 Copernicus |
front 57 Which is the correct order of units of measurement from smallest to largest? | back 57 Meter, kilometer, AU, ly, parsec |
front 58 What is a light year (ly)? | back 58 The distance that light travels in one Earth year |
front 59 What is an astronomical unit (AU)? | back 59 The average distance between Earth and the Sun |