Distances in Space and Components of the Universe

Manuel learned how scientists use models to understand the natural world. He learned that even though some models are very simple, they still can be helpful. To demonstrate this point, Manuel built a model showing Earth and the Sun and showed it to the class. The diagram below shows what Manuel constructed. What is a benefit of Manuel’s model in helping others in the class understand the universe?

• The model describes how Earth receives solar energy.

• The model indicates the relative size of Earth and the Sun.

• The model indicates the distance between Earth and the Sun

• The model describes the orbit that Earth follows around the Sun.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-3

What is a light-year?

• The distance between two stars

• The distance light travels in one year

• The time it takes light to travel 300,000,000 meters

• The time it takes light to travel to Earth from the Sun

Which of the following shows all wavelengths of the electromagnetic spectrum that are used to gain information about the components of the universe?

• Radio, infrared, and visible light

• Radio, infrared, Ultraviolet, and X-rays

• Radio, infrared, visible light, ultraviolet, and X-rays

• Radio, infrared, visible light, ultraviolet, X-rays, and gamma rays

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

Analyze the image of the model of the Milky Way galaxy. At which location would you expect to find the sun?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-ESS1-2

Why does Earth get more energy from the sun than from all the other stars in the universe combined?

• The sun is much larger than other stars.

• The sun is much hotter than other stars.

• The sun is much denser than other stars.

• The sun is closer than other stars.

The Milky Way galaxy is described as a disk of stars orbiting a central point on the disk. Which of these best describes why people on Earth cannot see the entire shape of the Milky Way galaxy?

• Earth is a part of this galaxy.

• Many more stars exist outside the galaxy.

• The stars in the center of the galaxy are extremely small.

• The center of the galaxy consists of a dense cluster of stars.

Tags

NGSS.MS-ESS1-2

A system of stars, gas, dust, and dark matter bound together by gravity is called -

• an asteroid

• a moon

• a galaxy

• a nebula

Tags

NGSS.MS-ESS1-2

The universe has many different components. Which list places four components of the universe in the most likely order from smallest to largest?

• Planets, stars, nebulae, galaxies

• Planets, stars, galaxies, nebulae

• Nebulae, stars, planets, galaxies

• Galaxies, stars, planets, nebulae

The Milky Way galaxy is described as a disk of stars orbiting a central point on the disk. Which of these best explains why people on Earth cannot see the entire shape of the Milky Way?

• Earth is a part of this galaxy.

• Many more stars exist outside the galaxy

• The stars in the center of the galaxy are extremely small

• The center of the galaxy consists of a dense cluster of stars

Why do other stars look much dimmer than the sun?

• The sun appear 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.