Deck 75: A Universe of Galaxies

Question 1

The redshift of distant galaxies was discovered by

A) Edwin Hubble
B) Albert Einstein
C) Vesto Slipher
D) Isaac Newton

Answer 1

Vesto Slipher

Question 2

The area of our Galaxy that we cannot see beyond is called the ____.

A) zone of the center
B) zone of bulge
C) zone of avoidance
D) zone of clusters

Answer 2

zone of avoidance

Question 3

These objects help us, by their variability, to measure distance to galaxies:

A) RR Lyra
B) Cepheid's
C) Mira's
D) T-Tauri

Answer 3

Cepheid's

Question 4

Hubble's constant is about _____.

A) 40 km/sec/mpc
B) 50 km/sec/mpc
C) 70 km/sec/mpc
D) 140 km/sec/mpc

Question 5

The observation that the farther a galaxy, the faster it moves away from us is called _____.

Question 6

The ______________________ of a galaxy does not change with distance or magnification.

Question 7

Nearby galaxies may not show a redshift.

Question 8

Redshift is found by looking at absorption line.