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EOC Practice 1st Semester Concepts #4
Test Description: Review
Instructions: Answer all questions to get your test result.
1) If a star is more massive, it is likely to have____
A
A longer life.
B
No life
C
To live forever
D
A shorter life
2) Stars that are nearing the end of their life and were once red giants are called______.
A
Red dwarfs.
B
Purple Trolls.
C
Dead stars
D
White dwarfs
3) A star begins its life in a cloud of gas and dust. The cloud is called a ____.
A
Galaxy.
B
Neutron.
C
Pulsar.
D
Nebula.
4) What is apparent magnitude?
A
the measure of how bright a star appears to be to an observer on Earth.
B
The brightness of a star
C
How far away the star is from Earth.
D
A measure of how bright the star would be if all stars were at the same distance from Earth.
5) The Earth turns from___.
A
North to south.
B
East to West
C
South to North.
D
West to East.
6) The hottest star has a ____ color.
A
Blue
B
Yellow.
C
Green
D
Red
7) What is a galaxy?
A
The earth's orbit.
B
The surface of the Moon.
C
A group of stars held together by gravity.
D
A single star.
8) Our Sun is a _______Star?
A
Supernova
B
Massive
C
Supergiant
D
Mid-sized
9) Magnitude measures what about a start?
A
How far away fro Earth the star is
B
How large the star is
C
The stars color
D
How bright a star is
10) List the life cycle in order that the Sun will go through before it dies.
A
mid-sized, nova, red giant, black hole
B
Mid-sized, red giant, white Dwarf, nova, Black Dwarf
C
Mid-sized, super giant, supernova, black hole
D
mid-sized, supergiant, white dwarf, black dwarf
11) List the following in order from largest to smallest: stars, galaxy, planets, universe
A
planets, stars, galaxy, universe
B
planets, universe, stars, galaxy
C
stars, galaxy, planets, univese
D
Universe, galaxy, stars, planets
12) What is the name of the galaxy our solar system is in?
A
The galaxy
B
The Milky way
C
The Cloudy way
D
The milky cloud
13) What type of galaxy do we live in?
A
Oval
B
Eliptical
C
round
D
Spiral
14) What process makes stars shine?
A
Atomic explosion
B
Nuclear suspension
C
Nuclear Fusion
D
Atomic fusion
15) Which best explains the process of nuclear fusion?
A
Two hydrogen nuclei join to form 1 helium nuclei and release a lot of energy
B
Two stars crash into each other and cause lots of energy
C
Two helium nuclei join to form 1 hydrogen nuclei and release a lot of energy
D
two atoms join but do not release any energy
16) What does the color of a star tell you?
A
Its distance from Earth
B
Its size
C
Its magnitude
D
Its temperature
17) Which color are the coolest stars?
A
Red
B
Purple
C
Blue
D
Yellow
18) What are the three types of galaxies?
A
Elliptical, Spiral, Irregular
B
Elliptical, round, oval
C
Elliptical, spiral, round
D
Spiral, round, oval
19) Why does our sun appear to be the brightest star in the sky?
A
Because it is the largest in the sky
B
Because it has the greatest magnitude
C
Because it is the closest to Earth
D
Because it is the farthest away from Earth
20) What measurement is used to measure large distances in space?
A
Light years
B
Miles
C
Centimeters
D
Astronomical Units
*select an answer for all questions
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