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