STAAR Review: Components of the Universe

The Sun is a star in the Milky Way galaxy. Which location above best represents the location of the Sun? (8.8B)

• W

• X

• Y

• Z

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

What does the Hertzsprung-Russell diagram tell us about the star, Betelgeuse? (8.8A)

• It has a low surface temperature and high luminosity

• It has high surface temperature and high luminosity

• It has low surface temperature and low luminosity

• It has high surface temperature and low luminosity

The spectral classes of four stars are shown in comparison with a Hertzsprung-Russell diagram. Based on the information, which star is most like the sun (which is shown in yellow)? --8.8A

• star 1

• star 2

• star 3

• star 4

As light from other stars travels through space, it gets reflected. Why do other stars look much dimmer than the sun? --8.8A

• The sun appears yellow, which is more visible than other colors.

• The sun is much closer to Earth than other stars are.

• Other stars are made up of different gases than the sun is.

• As light from other stars travels through space, it gets reflected.

A diagram of the electromagnetic spectrum is shown. Earth’s atmosphere blocks short wavelengths of the electromagnetic spectrum. Which telescopes must be placed in orbit around Earth in order to observe short-wavelength radiation? --8.8C

• Gamma-ray telescopes

• Visible-light telescopes

• Infrared telescopes

• Radio telescopes

What keeps planets in the solar system from moving in straight lines through the galaxy? (8.8A)

• light energy

• gravity

• inertia

• potential energy

Given the following HR Diagram, which star would have the highest temperature? --(8.8A)

• Deneb

• Canopus

• Sun

• Regulus

Galaxies are classified based on their --(8.8A)

• size

• color

• shape

• smell

What is the name given to the tool used to classify stars by their brightness and surface temperature? --(8.8A)

• Hertzsprung Russell diagram

• Electromagnetic Spectrum

• Periodic Table

• Hubble Telescope

With the use of the Hubble Space Telescope, scientists recently discovered a giant runaway star. It is 90 times larger than the sun and is very hot and blue-white in color. Why does the sun appear to be brighter than this runaway star when viewed from Earth? --(8.8A)

• The sun is a different color than the runaway star.

• The sun is older than the runaway star.

• The sun is closer to Earth than the runaway star.

• The sun is made of different elements than the runaway star.