Astronomy

Which part of the Sun is marked with an X on the diagram above

• convection zone

• corona

• photosphere

• radiative zone

Which characteristics can be studied by analyzing a star's spectrum?

• absolute and apparent magnitudes

• formation and evolution

• movement and luminosity

• temperature and composition

Tags

NGSS.HS-PS4-3

Which feature of the Sun appears in cycles of about 11 years?

• coronal mass ejections

• solar flares

• solar wind

• sunspots

Which star on the graph has the greatest apparent magnitude?

• Polaris

• Proxima Centauri

• Sirius

• the Sun

What do astronomical units and light-years have in common?

• Both measure the speed of light

• Both measure the speed of aircraft.

• Both measure the speed of galaxies

• Both measure the distance between objects in space

Tags

NGSS.MS-ESS1-3

Which zone contains hot gas moving up toward the surface and cooler gas moving down toward the center of the Sun?

• Zone A

• Zone B

• Zone C

• Zone D

Which contains most of the mass of the universe?

• black holes

• dark matter

• gas and dust

• stars

Which stellar objects eventually form from the most massive stars?

• black holes

• diffuse nebulae

• planetary nebulae

• white dwarfs

Which is a characteristic for this type of galaxy?

• It contains no dust

• It contains little gas

• It contains many young start

• It contains mostly old stars

Where do stars form?

• in black holes

• in constellations

• in nebulae

• in supernovae