HR Diagram Notes

Multiple Select

H-R Diagrams compare a star's ....

(2)

• Age

• Size

• Temperature

• Brightness

Multiple Select

What types of stars are found on the graph? Select all that apply.

• Main Sequence

• White Dwarfs

• Black Dwarfs

• Super Giants

Reorder

Place the colors of stars in order from coolest (1) to hottest (5).

• red

• red-orange

• yellow

• white

• blue

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Hotspot

Where on the graph are Main Sequence stars found?

Multiple Choice

What stage comes after the main sequence for a small or medium sized star?

• Red giant
• Main sequence
• Supernova
• White dwarf

Multiple Choice

Giants are typically ________ than average main sequence stars.

• hotter

• smaller

• cooler

• younger

Multiple Choice

HIgh mass stars turn into ____________ when they run out of Hydrogen fuel.

• black holes

• protostars

• supergiants

• main sequence

Drag and Drop

Supergiants are extremely​

Placeholder

compared to main sequence stars.

Drag these tiles and drop them in the correct blank above

bright

small

dim

young

Multiple Choice

The temperature of white dwarfs are ________ to _________.

• average; hot

• average; cool

• hot; cool

• cool; cold

Multiple Choice

Checkpoint question 1: What is the HR Diagram and how is it useful?

• The HR Diagram is a chart that compares the relationship between a star's brightness and temperature.

• The HR Diagram is a chart that maps the age of stars based on their brightness.
• The HR Diagram is a tool for measuring a star's distance from Earth.
• The HR Diagram shows the color of stars and their distance from the Sun.

Multiple Choice

Checkpoint 2:What 4 groups of stars can be found on the HR Diagram?

• Blue Supergiants, Black Holes, Average, Black Dwarfs

• Yellow Dwarfs, Neutron Stars, Supergiants, Main Sequence

• Red Supergiants, White Dwarfs, Red Dwarfs

• Main Sequence, Red Giants, Supergiants, White Dwarfs

Multiple Choice

Checkpoint 3: Identify the colors of stars from hottest to coolest?

• Green, Purple, Pink, Brown, Black
• White, Yellow, Green, Blue, Red
• Red, Yellow, Blue, Green, Orange
• Blue, White, Yellow, Orange, Red

Multiple Choice

Checkpoint 4: How would you compare Red Giants to White Dwarfs?

• Red Giants are small, dim stars, while White Dwarfs are large, bright stars.
• Red Giants are hot, dense stars, while White Dwarfs are cool, luminous stars.
• Red Giants are remnants of supernovae, while White Dwarfs are main-sequence stars.
• Red Giants are large, luminous stars, while White Dwarfs are small, dense remnants of stars.

Multiple Choice

Checkpoint 5: How does the Sun's brightness and temperature compare the other stars?

• The Sun is an average star in brightness and temperature compared to other stars.
• The Sun is a giant star with extreme brightness.
• The Sun is much cooler than most stars.
• The Sun is the brightest star in the universe.

Labelling

Label the diagram

Drag labels to their correct position on the image

blue giants

supergiants

giants

brighter

white dwarfs

main sequence

dimmer

cooler

hotter

Hotspot

A Hertzsprung-Russell (H-R) diagram is shown.

A star that has a luminosity of 10^-2 and a temperature of 20,000 K would most likely be found as a —

Hotspot

Which area of the HR Diagram are Supergiants found?

Labelling

Label the characteristics of stars in each area of the Hertzsprung-Russell diagram.

 

Move ONE correct answer to each corresponding box.

Drag labels to their correct position on the image

hot, bright

hot, dim

cool, dim

cool, bright