Download - Astronomy Unit Test
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Astronomy Unit Test
Jeopardy Review Game
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The Sun Life Cycle of Stars
Galaxies Measuring Matter
Gravity and the Big Bang
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In which layer of the Sun is energy
made? ?
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The Core
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In order for nuclear fusion to occur,
conditions must be extremely ______ and
________.
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Hot and dense
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Describe how the Sun makes energy.
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The Sun makes energy through nuclear fusion in which hydrogen
atoms combine to form helium.
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Name the three layers of the Sun’s
“atmosphere”.
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Photosphere, chromosphere, and
the corona
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What are sunspots?
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They are areas on the photosphere that are cooler than the rest of the photosphere,
so they appear darker. They are areas of intense
magnetic activity.
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Stars are formed from a cloud of gas and dust called a
__________.
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Nebula
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The type of object that a star becomes when it dies depends
the star’s ________.
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mass
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A star spends most of its life in this stage.
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Main sequence
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After the super red giant phase, a very
high mass star erupts in an explosion called
a _________
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Supernova or hypernova
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Name the three objects a star might become when it dies.
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Black dwarf, neutron star, black hole
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Name three shapes that galaxies can
have.
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Elliptical, spiral, and irregular
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Put these structures in order from
smallest to largest: universe, star,
galaxy, solar system
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Star, solar system, galaxy, universe
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What object is located at the center
of many galaxies (including ours)?
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A supermassive black hole
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In what part of our galaxy is Earth
located?
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In one of the outer spiral arms
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What is the galaxy that is closest to
ours?
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Andromeda
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Define mass and weight.
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Mass is the amount of matter in an object;
weight is the amount of gravitational force pulling on an object.
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Define volume.
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Volume is the amount of space an object
takes up.
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Define density.
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Density is a measure of how compact something
is; it is the amount of matter within a specfic
amount of space.
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What is the densest known space object?
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A black hole.
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If a baseball has a mass of 145 g on Earth, what is its
mass on the International Space
Station?
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145 grams
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Because of the Big Bang, galaxies are doing
this.
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Moving away from each other
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About how long ago did the Big Bang
occur?
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About 14 billion years ago
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What two conditions are in balance to create the Earth’s
orbit around the Sun?
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Gravity and the inertia of the Earth’s
velocity
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Which of the following objects
exerts a gravitational pull:
Earth, the Sun, a lab table, a spider
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They all do. If something has mass, it
has gravity.
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Name two factors that affect the
gravitational pull between two objects.
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The mass of each object and the
distance between them.