

H-R diagram
Presentation
•
Science
•
8th Grade
•
Practice Problem
•
Medium
+2
Standards-aligned
Shane Davis
Used 16+ times
FREE Resource
8 Slides • 26 Questions
1
Analyzing HR
​

2
Multiple Choice
Some students used records from the U.S. Naval Observatory to make the table below of the percent of the moon that was visible on each night in January 2011.
Based on these data, what part of the lunar cycle occurred between January 5 and January 7?
Waxing crescent moon
Waning crescent moon
Full moon
New moon
3
Multiple Choice
The diagram below shows four positions in Earth’s orbit around the sun.
The Northern Hemisphere experiences the beginning of spring when Earth is in —
1
2
3
4
4
Multiple Choice
What force causes Venus to travel along a curved path instead of moving in a straight line as indicated by the dashed line in the diagram?
Electromagnetic attraction between the sun and Venus
Gravitational attraction between the sun and Venus
Electromagnetic attraction between Mercury and Venus
Gravitational attraction between Mercury and Venus
5
Open Ended
What are some things you notice about this chart?
6
Hertzsprung- Russell Diagram
Size
Luminosity
Color
Temperature
7
Open Ended
What kind of chart is this? Where have you seen this before?
8
9
Luminosity
Brightness is similar to size.
The bigger the brighter.
10
Size
11
Multiple Select
Going up the Y-axis, what two things increase in the HR diagram?
Color
Size
Temperature
Luminosity
12
Color (Temperature)
Left is Hot
Right is Cool
Red- 3000
Orange- 4000
Yellow- 6000
White- 10,000
Blue- 25,000
13
Multiple Select
Left to Right on the X-axis, what two things change in the HR diagram?
Color
Size
Temperature
Luminosity
14
Multiple Choice
On which side of the HR diagram can the hottest stars be found?
Left
Right
Middle
Top
15
Multiple Choice
On which side of the HR diagram can the coolest stars be found?
Left
Right
Middle
Top
16
Multiple Choice
On the HR diagram which color is the hottest star found in the universe?
Blue
Yellow
White
Red
17
Multiple Choice
On the HR diagram which color is the coolest star found in the universe?
Blue
Yellow
White
Red
18
Multiple Choice
Which group of stars would our sun be found?
Giants
Supergiants
Main Sequence
White Dwarfs
19
Apparent vs Absolute Magnitude
Apparent
How bright the star looks
from Earth.
Absolute Magnitude
How bright the star actually is
in space.
The Sun. It is closer that all other stars, but closer to Earth
20
Open Ended
Explain why the sun is the largest star that we can see.
21
Multiple Choice
Which group of stars could be found here?
Giants
Supergiants
Main Sequence
White Dwarfs
22
23
Multiple Choice
Compared to our sun, which group of stars would be hotter and dimmer?
Giants
Supergiants
Main Sequence
White Dwarfs
24
Multiple Choice
Compared to our sun, which group of stars would be hotter and brighter?
Giants
Supergiants
Main Sequence
White Dwarfs
25
Multiple Choice
Compared to our sun, the other star is.....
Hotter and Dimmer
Cooler and Dimmer
Hotter and Brighter
Cooler and Brighter
26
Multiple Choice
Which group would this other star be found?
Giant
Main Sequence
Supergiant
White Dwarf
27
Multiple Choice
Compared to our sun, the other star is.....
Hotter and Dimmer
Cooler and Dimmer
Hotter and Brighter
Cooler and Brighter
28
Multiple Choice
Which group would this other star be found?
Giant
Main Sequence
Supergiant
White Dwarf
29
Multiple Choice
Compared to our sun, the other star is.....
Hotter and Dimmer
Cooler and Dimmer
Hotter and Brighter
Cooler and Brighter
30
Multiple Choice
Which group would this other star be found?
Giant
Main Sequence
Supergiant
White Dwarf
31
Multiple Choice
Compared to our sun, the other star is.....
Hotter and Dimmer
Cooler and Dimmer
Hotter and Brighter
Cooler and Brighter
32
Multiple Choice
Which group would this other star be found?
Giant
Main Sequence
Supergiant
White Dwarf
33
Multiple Choice
Based on this diagram, which type of stars would belong to spectral class M and have the highest luminosity?
Main-sequence stars
Giants
White dwarfs
Supergiants
34
Open Ended
Describe how you would explain to someone how to read an H-R Diagram
Analyzing HR
​

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