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Earth Science Chapter 25 Flashcards | StudBud
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Earth Science Chapter 25
Earth Science Chapter 25
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1
What is the distance light travels in a year?
speed of light
Dab
light-year
month-year
2
A reg giant star is in the upper left portion of the HR Diagram?
True
False
3
A star's color is a clue to determine ....
name
weight
temperature
size
4
What is most difficult to calculate?
A star's distance from the sun.
A star's weight
A star's color
A star's mass
5
The sun spends much of its life as a Dwarf star?
True
False
6
Where does the main sequence star fall in the HR Diagram?
Main Sequence Category
Bottom Right Corner
The biggest Category
Top Category
7
This shows the relationship between absolute magnitude and temperature of the star.
Periodic Element Table
H-R Diagram
Map of stars
Harry's Diagram
8
What is true about cosmic background radiation?
It was produced during the big bang.
Reason they call bowling cosmic bowling.
Wanda likes it.
It only happens once a day.
9
Parallax is......
The poosition of the star because of the orbit of Earth.
The parallel star
The star parallel to the nearest star to the moon
A language
10
Which of the following is not true about Constellations?
Its an apparent group of stars.
Named after mythological Chatacters
There are 88 constellations in the sky
They are strong and powerful
11
What color is a supergiant star?
Blue
Red
Green
Aqua
12
What percentage of of galazxies are spiral?
70%
100%
60%
30%
13
A developing star is not hot enough to engage in nuclear fusion?
True
False
14
Apparent Magnitude is the weight of the star when viewed from Earth?
True
False
15
One of 2 stars revolving around the center of mass under their mutual gravitational attraction
Galaxy
Constellation
Light Year
Binary Mass
16
Only big stars fun out of fuel and collapse because of gravity?
False
True
17
The big bang produced the red shift?
True
False
18
The nearest stars have the Largest Parallax.
True
False
19
The big bang produced the red shift?
False
True
20
What percentage of galaxies are elliptical ?
70%
100%
30%
60%
21
A red shift is...
Taylor swifts lipstick color
shows the Earth &the source are moving away from each other
xpanding universe
Type of galaxy
