Intro into Cosmology 2023

The study of the large scale structure and evolution of the universe is called.

• Astonomy

• Astrology

• Cosmology

• Cosmetology

When we see the Andromeda galaxy, we are seeing it as it was 2.3 million years ago. Why?

• it takes light that length of time to travel

• light travels really slow in outer space

• light travels faster than sound

• it is an ancient galaxy

What is on the edge of the Universe

• there is no edge

• no one knows, we are in the middle

• another universe

• sheets and voids

What is the problem with Newtonian gravity and the Universe

• Gravity should have pulled all objects together

• gravity can't reach far enough

• Gravity is not strong enough to hold galaxies

• The universe was formed before gravity

Tags

NGSS.HS-PS2-4

What is cosmic homogeneity and Isotropy

• The center of the universe is denser than the edge

• All parts of the universe look the same

• Everything is made up of hydrogen

• The edge of the universe is changing

Which statement is true?

• The galaxies are moving toward us.

• The galaxies are moving away from us.

• The universe remains static or unchanged in motion.

• None of the above

Tags

NGSS.HS-ESS1-2

What is at the center of the universe?

• There is no center

• a giant black hole

• another universe

• a supernova

What can be defined as space and all the matter & energy in it that we know or can ever detect.

• Space

• Universe

• Earth

• Milky Way

If light travels forever, why is it dark at night?

• The light is blocked by gases

• The light is to weak to see

• The sun is on the other side of the planet

• The stars are tiny

• The light has not had enough time to reach us

Who is credited with the origins of the study of Cosmology

• Hubble

• LeMarte

• Einstein

• Newton