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Characteristics Of Stars
Test Description: Review questions from our Stars unit of study
Instructions: Answer all questions to get your test result.
1) Stars are glowing spheres of hot...
A
Dust
B
Metal
C
Gas
D
Liquid
2) On a clear night, about how many stars can we see?
A
3,000,000
B
30,000
C
3,000
D
300
3) Which of the following is NOT a reason stars are important?
A
Telling time/seasons
B
Energy
C
Navigation
D
Ocean tides
4) How fast does light travel?
A
186,000 miles per second
B
500,000 miles per second
C
100 miles per hour
D
1,000,000 miles per hour
5) What is a light-year?
A
How far light travels in 1 year
B
How long it takes light to get to us from the sun
C
How far light travels in 1 second
D
How long it takes light to travel 1 mile
6) An astronomical unit is equal to how many miles?
A
9 Thousand
B
930 Million
C
9 Million
D
93 Million
7) Most stars are made up mostly of which two gasses?
A
Oxygen and Nitrogen
B
Carbon Dioxide and Hydrogen
C
Hydrogen and Helium
D
Nitrogen and Helium
8) Hydrogen atoms combine to make helium in what process?
A
Supernova
B
Nuclear Fusion
C
Nuclear Fission
D
Black Hole
9) Based on size...the sun is a _________ star
A
Supergiant
B
Medium
C
Dwarf
D
Giant
10) Compare the star Betelgeuse and our Sun
A
Betelgeuse is much smaller than our sun
B
Betelgeuse is much larger than our sun
C
They are about the same size
11) Which type of star is about the size of Earth?
A
Neutron Star
B
White Dwarf
C
Giant
D
Supergiant
12) What is the smallest type of star?
A
Neutron Star
B
Dwarf
C
Black Hole
D
Giant
13) What color are the hottest stars?
A
Orange
B
Blue
C
Red
D
White
14) What color are the coldest stars?
A
Yellow
B
Red
C
Orange
D
White
15) What is the correct order of color from hottest stars to coldest?
A
White, Yellow, Orange, Red, Blue
B
Blue, Yellow, White, Red, Orange
C
Red, White, Yellow, Blue, Orange
D
Blue, White, Yellow, Orange, Red
16) The brightness of a star depends on all of these EXCEPT...
A
Size
B
Amount of oxygen
C
Distance
D
Temperature
17) Apparent magnitude is what?
A
How bright a star looks from Earth
B
How bright a star actually is
18) Absolute magnitude is what?
A
How bright a star looks from Earth
B
How bright a star actually is
19) The H-R in the H-R diagram stands for what?
A
Hoover-Reynolds
B
Harris-Richards
C
Hertzsprung-Russell
20) More than 90% of all stars fall into what band on the HR Diagram?
A
Giants
B
Dwarfs
C
Main Sequence
D
Supergiants
*select an answer for all questions
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