Stars, Galaxies, HR Diagram

Which category is our Sun located in?

• Main Sequence

• Red Giant

• White Dwarf

• Neutron Star

What type of stars belong to spectral class M and have the highest luminosity?

• Dwarfs

• Giants

• Supergiants

• Main Sequence

What is a white dwarf?

• A type of planet that orbits a star.

• A small, dense star that is the remnant of a low to medium mass star.

• A large, gaseous star that is in the process of forming.

• A star that has exploded in a supernova.

What is the significance of a star's temperature?

• It determines the star's size and mass.

• It determines its color, spectral class, and position on the Hertzsprung-Russell diagram.

• It affects the star's distance from Earth.

• It influences the star's brightness and lifespan.

What is the difference between a red giant and a supergiant?

• Red giants are smaller than main-sequence stars, while supergiants are larger than red giants.

• Red giants are larger than main-sequence stars but smaller than supergiants, which are the largest stars.

• Red giants and supergiants are the same size, but supergiants are more luminous.

• Red giants are the largest stars, while supergiants are smaller than red giants.

Tags

NGSS.HS-ESS1-3

What is a nebula?

• A giant cloud of gas and dust in space, often the birthplace of stars.

• A type of star that is dying and collapsing in on itself.

• A planet that is covered in ice and has no atmosphere.

• A black hole that absorbs all light and matter.

What is the spectral class of a star with a temperature of 11,000 K?

• Spectral Class A

• Spectral Class B

• Spectral Class F

• Spectral Class G

What is the name of the gas/dust clouds that form stars?

• Nebulas

• Asteroids

• Comets

• Planets

What is a supernova?

• A type of star that is still forming

• A powerful explosion that occurs at the end of a star's life cycle

• A black hole that forms from a collapsed star

• A planet that orbits a dying star

What is the Hertzsprung-Russell diagram used for?

• To classify stars based on their luminosity and temperature.

• To measure the distance of stars from Earth.

• To determine the age of stars.

• To identify the chemical composition of stars.