Download UNIT 4 STUDY GUIDE Objectives

UNIT 4 STUDY GUIDE Objectives
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What is astronomy?
What are the two ways that the Earth moves through space? Describe each.
Why does the Earth have seasons? Are the seasons the same all over the Earth? Why or why not?
What is a solstice? How many are there? When are they?
What is an equinox? How many are there? When are they?
The force of gravity depends on what two factors?
What two factors keep moons and planets in orbit?
What causes the phases of the moon?
What are the eight phases of the moon? Sketch each one.
What is an eclipse?
What are the two types of eclipses? What causes each one?
What is the difference between the penumbra and the umbra?
What causes the tides? How many high & low tides are there per day?
What is the difference between a neap tide and a spring tide?
What’s the difference between heliocentric & geocentric models of the solar system?
What are Kepler’s three laws of planet motion?
What objects make up our solar system?
What is the unit used for measuring distances in the solar system? What does one of these units
equal?
How does the sun create its energy? Explain how it works and where it occurs.
Name & describe the three layers of the sun’s interior? (inner to outer)
Name & describe the three layers of the sun’s atmosphere? (inner to outer layers)
Name and define the four features found on the sun.
Name the inner planets, What do the inner planets have in common?
Name the outer planets, What are the outer planets called? What do they have in common?
What are rings made of?
How is Pluto different from the gas giants?
What is a comet and what are it’s three parts?
From what regions do comets originate? Which region is further away?
What are asteroids and where are they found?
What is the difference between a meteoroid, meteor and a meteorite?
What is asteroid belt and where is it located?
What is a constellation?
What characteristics are used to classify stars?
What factors affect the brightness of a star?
What units do astronomers use to measure distance to stars? What does this unit equal?
How do astronomers use the H-R diagram? What kind of star is our Sun?
What is the relationship between surface temperature and brightness for main sequence stars?
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What is a star system?
Name the different phases of life cycle of a star?
What happens when a dying high mass star suddenly explode?
What happens when a low mass star runs out of fuel?
What is a galaxy? How many galaxies are there in the universe?
What are the different types of galaxies?
What type of galaxy is our solar system in? What is the name of this galaxy?
What is the universe?