unit 9

Question 1

The ___ star is extremely luminous and emits a lot of energy in a short amount of time.

Answer 1

Quasar

Question 2

when infinite gravitation and density walls bunched together at one point, it is a phenomenon called____.

Answer 2

Singularity

Question 3

in a(n) ____, electrons are cramped and can’t circulate freely.

Answer 3

white dwarf

Question 4

If _____ Exists, it constitutes 90% of all existence.

Answer 4

Dark matter

Question 5

When their fuel source runs out, Quasers become _____.

Answer 5

Ordinary galaxies

Question 6

A(n) ____ stretches across the entire cosmos in chains and sheets of clusters that are linked by gravity at their edges.

Answer 6

Supercluster

Question 7

A(n) __ shift occurs when a light source, such as a star pr quasar, reduces from an observer at a significant percentage of light speed.

Answer 7

Red

Question 8

_____ ____ are in a state of existence where physical laws do not apply and they are mysteries because they are unobservable from the outside

Answer 8

Black holes

Question 9

Shrinkage to the point where electrons merge with protons and there is no empty space are characteristics of A(n) ___.

Answer 9

Neutron star

Question 10

All _____ are powered by _____ falling into black holes.

Answer 10

Active galaxies, Matter

Question 11

As extreme conditions in the cores of dying stars alter ordinary matter it forms _____.

Answer 11

degenerate matter.

Question 12

____ are detected by ____ when nuclei are broken apart.

Answer 12

Siingularties, X-rays

Question 13

The greater an object’s distance, the greater the ___ speed.

Answer 13

recessions

Question 14

Light from A(N) _____ comes from its exceptionally bright nucleus within which large amounts of very ionized gas surges

Answer 14

Seyfert galaxy

Question 15

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

Answer 15

Mass

Question 16

Our local group is moving towards a supercluster known as the _____.

Answer 16

Great attractor

Question 17

_______ Occur(s) when electrons from ionized matter spiral around magnetic lines of force that surround a black line.

Answer 17

Synchroton radiation

Question 18

______ is the act of growing by being added to>

Answer 18

Accretion

Question 19

____ is a spiral shaped ___ moving through the galactic disk

Answer 19

Density wave, Disturbance

Question 20

Dust must be considered when estimating ___ in space.

Answer 20

distance

Question 21

Spiral galaxies are classified by what?

Answer 21

The degree of openness of the arms and the size of the nuclei

Question 22

what is it called when the universe is seen as an orderly system?

Answer 22

Cosmos

Question 23

The void between chains and clusters are called

Answer 23

Bubbles

Question 24

what reveals itself with the presence of very hot, rapidly moving, low-density gas in the galaxy’s halo?

Answer 24

Dark Matter

Question 25

Most molecules by nature are ____ without a pattern.

Answer 25

asymmetrical