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