HR Diagram/EM Spectrum

What characteristics are used to classify stars on HR diagrams?

• Flammability, weight, and reactivity

• Temperature/color and brightness

• Conductivity, luster, and density

• Malleability, distance, and viscoscity

What does "magnitude" mean on the HR diagram?

• degree of compactness of a star.

• degree of temperature of a star.

• the color of a star.

• degree of brightness of a star.

Which star is hotter than Deneb?

• Procyon

• Sun

• Regel

• Banard's Star

Which star is brighter, but lower in temperature, than the sun?

• Sirius B

• Procyon B

• Van Maanan's Star

• Aldebaran

Which star is brighter than Alpha Centauri B, but dimmer than the sun?

• Pollux

• Spica

• Tau Ceti

• Mira

Which of the following stars is considered to be in its main sequence?

• Vega

• Betelgeuse

• Pollux

• Van Maanan's Star

Tags

NGSS.HS-ESS1-1

Knowing the color of a star also tells us its __________

• age

• location

• temperature

• name

What does "magnitude" mean on the HR diagram?

• degree of compactness of a star.

• degree of temperature of a star.

• the color of a star.

• degree of brightness of a star.

Which of the following statements is the most accurate statement for the element of Hydrogen?

• It is the most abundant element found in stars.

• It is a not found in many stars.

• It is only found in dwarf stars and supergiants.

• It causes stars to go supernova.

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Which of the following types of electromagnetic radiation has the shortest wavelength?

• Radio Waves

• Visible Light

• Microwaves

• Gamma Rays

Tags

NGSS.HS-PS4-1