Why can't we see the entire shape of the Milky Way Galaxy?

• Earth is part of the Milky Way

• More stars exist outside of the galaxy

• the stars in the center are very small

• the center of the galaxy is a dense star cluster

Tags

NGSS.MS-ESS1-2

Which of these observations of Barnard's star is most likely accurate?

• less bright than the sun, has a surface temperature below 3,800 K, and is red.

• less bright than the sun, has a surface temperature above 3,800 K, and is red.

• is brighter than the sun, has a surface temperature below 5,300 K, and is yellow.

Which type of star would belong to spectral class K and have the highest luminosity?

• Main-Sequence stars

• Giants

• white dwarfs

• supergiants

Using the electromagnetic spectrum, astronomers are able to determine all of the following except-

• chemical composition

• temperature of the star

• organisms present on planets orbiting the star

• planets that orbit the star

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

Which of the following properties can be determined by the colors of spectral lines of stars? (can pick more than one)

• distance

• luminosity

• chemical composition

• temperature

Quasars are extremely distant celestial bodies. Investigators using a special telescope determined that a certain quasar was emitting waves with a frequency of 1.41×10⁹Hz. An electromagnetic spectrum is shown. The scientists were most likely using a telescope that detects -

• microwaves

• x-rays

• visible light

This is a model of a galaxy a student made out of sand, each grain of sand would represent-

• comet

• black hole

• asteroid

• star

Tags

NGSS.MS-ESS1-2

Why does the Earth receive more energy from the sun than it's next closest star, Proxima Centauri?

• the sun is larger

• the sun is hotter

• the sun is closer

• the sun is more dense

Why does the sun appear brighter than the supergiant star Betelgeuse?

• the sun is a different color

• the sun is older

• the sun is closer

• the sun is made of different elements

Which describes the relationship between the Sun and Milky Way galaxy?

• The Sun is a giant-sized star near the center of a disc-shaped galaxy called the Milky Way.

• The Sun is a medium-sized star near the center of a disc-shaped galaxy called the Milky Way

• The Sun is a medium-sized star near the edge of a disc-shaped galaxy called the Milky Way.