Deck 80: Cosmology

Question 1

Hubble's constant is _____ km/sec/mpc.

A) 20
B) 40
C) 70
D) 120

Answer 1

70

Question 2

The time it took galaxies to get to the separation we see is called

A) cosmology time.
B) prime time.
C) Hubble time.
D) horizon time.

Answer 2

Hubble time.

Question 3

This principle implies that there is no center to the universe.

A) general relativity
B) cosmological principle
C) Olber's paradox
D) Hubble law

Answer 3

cosmological principle

Question 4

The best model for the beginning of the universe is ______.

Question 5

To avoid confusion astronomers use ______________________________ when talking of the distance to far away galaxies.

Question 6

Hubble's law states that the farther the galaxy, the faster the recession.

Question 7

The lack of a center to our universe is called Hubble's Law.