Astronomy Unit3B Review

Which category of stars are very hot, but not very bright?

• Blue Giants

• Red Giants

• White Dwarfs

• Red Supergiants

What type of star is the Sun classified as?

• A red giant star

• A red supergiant star

• A neutron star

• A main sequence star

Which star would be very hot and very bright?

• Rigel

• Sirius

• Alpha Centauri B

• Betelgeuse

Which of the following pieces of information are given by an H-R diagram? Check all that apply.

• Temperature of the star

• Color of the star

• Planets around the star

• Location of the star

Which category of star is the Sun found in on an H-R Diagram?

• Red Giants

• Main Sequence

• Blue Giants

• White Dwarfs

In the diagram given, what happens as we move to the left?

• Stars Get Larger
• Stars get Colder
• Stars get Hotter
• Stars get Brighter

Which has the LONGEST wavelength and, therefore, the lowest frequency/energy

• Gamma Rays
• Radio Waves
• Visible Light
• Infrared rays

Which section of the spectrum is the ONLY one we can see?

• X-rays
• Visible Light
• Gamma Rays
• Ultraviolet Rays

The color of emitted light with the SHORTEST wavelength is

• violet

• green

• red

• indigo

Which of the following has the longest wavelength?

• microwaves

• UV rays

• Infrared

• Gamma rays