Unit 1 The Universe

What is the solar system?

• A group of stars that form a pattern in the sky

• Sun, planets, and all the other objects that revolve around the sun

• A huge, bright ball of burning gas that is held together by gravity

• An object that orbits a star, is large enough to have become rounded by its own gravity

Tags

NGSS.HS-ESS1-4

What is a planet?

• A group of stars that form a pattern in the sky

• Sun, planets, and all the other objects that revolve around the sun

• A huge, bright ball of burning gas that is held together by gravity

• An object that orbits a star, is large enough to have become rounded by its own gravity

What is a star?

• A group of stars that form a pattern in the sky

• Sun, planets, and all the other objects that revolve around the sun

• A huge, bright ball of burning gas that is held together by gravity

• An object that orbits a star, is large enough to have become rounded by its own gravity

What is a galaxy?

• A single star

• A huge group of single stars, star systems, star clusters, dust, and gas bound together by gravity

• A planet

• A comet

Tags

NGSS.MS-ESS1-2

What is a light-year?

• The distance that light travels in one year

• The distance between the Earth and the Sun

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

• The speed of light

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

What is the universe?

• A single galaxy

• Space and all the matter and energy in it

• A star system

• A black hole

Tags

NGSS.HS-ESS1-2

What is the name of our galaxy?

• Andromeda Galaxy

• Milky Way Galaxy

• Triangulum Galaxy

• Whirlpool Galaxy

What are voids in the universe?

• Areas with a high concentration of stars

• Areas throughout the universe where very little matter exists

• Areas with a high concentration of planets

• Areas with a high concentration of black holes

What is the term used to describe the brightness of a star when viewed from Earth?

• Luminosity

• Absolute magnitude

• Apparent magnitude

• Celestial body

What does the term "luminosity" refer to in astronomy?

• The brightness of a star when viewed from Earth

• The actual brightness of a star

• A measure of how bright a star would be if all stars were at the same distance

• Any natural object outside of Earth's atmosphere