Cosmology

Billions of stars in the same region of the universe are called

• solar systems

• asteroid belts

• constellations

• galaxies

In which list are celestial features correctly shown in order of increasing size?

• galaxy, solar system, universe, planet

• solar system, galaxy, planet, universe

• planet, solar system, galaxy, universe

• universe, galaxy, solar system, planet

Compared to Earth's solar system, the universe is inferred to be

• younger and larter

• younger and smaller

• older and larger

• older and smaller

Tags

NGSS.HS-ESS1-2

Which sequence lists the relative sizes from smallest to largest?

• our solar system, Milky Way Galaxy, universe

• our solar system, universe, Milky way galaxy

• Milky Way Galaxy, our solar system, universe

• Milky Way Galaxy, universe, our solar system

Most scientists believe the Milky Way Galaxy is

• spherical in shape

• 4.6 billion years old

• composed of stars revolving around Earth

• one of billions of galaxies in the universe

The study of the physical origins and evolution of the Universe is called ___

• evolution

• cosmology

• botany

• university

Tags

NGSS.HS-ESS1-2

NGSS.HS-ESS1-3

The glow of the fireball leftover from the birth of the cosmos is commonly called the ___

• cosmic radiation aura

• universal microwave radiation

• universal microwave impression

• cosmic microwave background

Tags

NGSS.HS-ESS1-2

In the 1910's Vesto Slipher analysed the spectra of “spiral nebulae” and found they were ___

• dimmer than expected

• missing spectral lines

• highly blueshifted

• highly redshifted

Tags

NGSS.HS-ESS1-2

The highly redshifted spectra of nebulae indicated that they were ___

• rushing toward us

• rushing away from us

• quickly expanding

• rotating quickly

Tags

NGSS.HS-ESS1-2

In the 1920s Georges Lemaître proposed on theoretical grounds that the universe was ___

• contracting

• expanding

• static

• dying

Tags

NGSS.HS-ESS1-2