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H-R Diagram

Total questions: 15

Worksheet time: 11mins

Name
Class
Date
1.

The H-R diagram classifies stars based on what factors?

a)

Temperature and luminosity

b)

Number of planets

c)

What constellation they're in

d)

Temperature and fusion

2.

Our sun is what kind of star?

a)

Blue giant

b)

Red giant

c)

Main sequence

d)

White dwarf

3.

Compared to a red giant star, a blue supergiant is...

a)

Hotter and brighter

b)

Hotter and not as bright

c)

Colder and brighter

d)

Colder and not as bright

4.

Compared to a white dwarf, a red supergiant is...

a)

Hotter and brighter

b)

Hotter and not as bright

c)

Colder and brighter

d)

Colder and not as bright

5.

Our sun is yellow. A star colder than our sun would be...

a)

Red

b)

Yellow

c)

White

d)

Blue

6.

Which star has a longer life, a main sequence star or a blue giant?

a)

Main sequence star

b)

Blue giant

7.
In the diagram given, what happens as we move to the left?
a)
Stars Get Larger
b)
Stars get Colder
c)
Stars get hotter
8.
Which star is the coldest?
a)
Yellow Star
b)
Red Star
c)
Orange Star
d)
Blue Star
9.
The category that contains the most stars is...
a)
Main Sequence
b)
Supergiants
c)
Giants
10.
As a whole, Giants are considered hotter than White Dwarfs.
a)
True
b)
False
11.
Red stars are the _____________.
a)
hottest
b)
coolest
c)
biggest
d)
brightest
12.
Blue stars are the _____________.
a)
hottest
b)
coolest
c)
smallest
13.
Which star has the lowest temperature?
a)
A
b)
B
c)
C
d)
D
14.
The effective temperature of a star is related to its...
a)
solar system
b)
luminosity
c)
absolute magnitude
d)
color
15.
About 90 percent of stars on the H-R diagram are ____ stars.
a)
red giant
b)
main sequence
c)
luminosity
d)
supergiants