Unit 9

Question 1

Light from ____ comes from its exceptionally bright nucleus, within which large amounts of very ionized gas surges

Answer 1

Seyfert Galaxy

Question 2

Unexpectedly high rotation speeds indicate that regions that contain longer orbits enclose more ___

Answer 2

Mass

Question 3

Our local group is moving toward a supercluster known as the ___

Answer 3

Great attractor

Question 4

__ _____ occurs when electrons from ionized matter spiral around magnetic lines of force that surround a black hole.

Answer 4

Synchrotron radiation

Question 5

____ is the act of growing by being added to.

Answer 5

Accretion

Question 6

The ___-star is extremely luminous

Answer 6

Quasar

Question 7

bunched together at one point, it is a phenomenon called___

Answer 7

Singularity

Question 8

In a ___ electrons are cramped and cant circulate freely

Answer 8

white dwarf

Question 9

If ___ exist, it constitutes 90% of all existence.

Answer 9

Dark matter

Question 10

Ordinary galaxies

Answer 10

When the fuel source runs out, quasars become____

Question 11

Stretches across the entire cosmos and chains and sheets of clusters that are linked by gravity at their edges

Answer 11

Supercluster

Question 12

—- shift occurs when a light source, such as a star quasar recedes from an observer at a significant percentage of light speed

Answer 12

Red

Question 13

___ are in a state of existence where physical laws do not apply and they are a mystery because they are unabsorbable from the outside

Answer 13

Black holes

Question 14

Shrinkage to the point where electrons merge with protons and there is no empty space are characteristics of A

Answer 14

neutron star

Question 15

all_____ are powered by ____ falling into black holes

Answer 15

active galaxies, matter

Question 16

as extreme conditions in the cores of dying stars from____

Answer 16

degenerate matter

Question 17

____ are detected by ____ when nuclei are broken apart

Answer 17

Singularities, xrays

Question 18

the greater the distance of an object, the greater ____ speed

Answer 18

recession

Question 19

the universe is seen as an orderly system

Answer 19

cosmos

Question 20

a phenomenon of infinite gravitation and density concentrated at a single point

Answer 20

singularity

Question 21

shrink to the point where electrons are confined and no longer free to circulate

Answer 21

white dwarfs

Question 22

created when electrons merge with protons; contain no empty space

Answer 22

neutron stars

Question 23

starlike heavenly bodies that emit huge amounts of energy in a short time

Answer 23

quasars

Question 24

When their fuel supply runs out, _____ become ordinary galaxies.

Answer 24

quasars