Test 22

Question 1

___ are loops of solar plasma that rise and fall from the sun’s surface.

Answer 1

Prominences

Question 2

____ are associated with some craters on the moon which formed by meteor.

Answer 2

Rays

Question 3

Lunar geologists believe that the only way the moon’s surface changes today is by _____ Impact.

Answer 3

Meteorite

Question 4

The theory that states that the earth and the moon both originally solidified from the same cloud of dust is the ______ theory.

Answer 4

Accretion

Question 5

the _____ has a nearly perfect spherical shape because it rotates very slowly.

Answer 5

Moon

Question 6

The ____ theory of the moon’s formation says that the earth captured a small planet by chance from an orbit around the sun.

Answer 6

Capture

Question 7

Compared to the earth the average ____ of the moon is less dense.

Answer 7

Density

Question 8

The moon has long narrow valleys called ______ located mainly in the level plains.

Answer 8

Rilles

Question 9

Most lunar ____ appear to have formed as a result of meteorite impacts.

Answer 9

Craters

Question 10

Some ______ may be shrinkage cracks in the moon’s crust.

Answer 10

Rilles

Question 11

The ______ are called maria because they were believed to have been lakes.

Answer 11

Lunar seas

Question 12

______ origin theories are a direct reflection of a scientist’s world view.

Answer 12

Moon

Question 13

_____ are depressions on the surface of the moon usually surrounded by circular walls.

Answer 13

Craters

Question 14

_____ tides affect the earth’s crust.

Answer 14

Earth

Question 15

_____ are the dark areas on the moon.

Answer 15

Maria

Question 16

The points on the moon are called _____ and they always point away from the earth.

Answer 16

Cusps

Question 17

The ______ is the line that divides the illuminated and shadowed sides of the moon.

Answer 17

Terminator

Question 18

The _______ has seasons mainly because its axis is tilted.

Answer 18

Earth

Question 19

The _____ moon visible in the Northern Hemisphere is the full moon that occurs around September 21-23.

Answer 19

Harvest

Question 20

The apparent path that the sun follows the stars as seen from Earth’s perspective is called _____.

Answer 20

Ecliptic

Question 21

In what phase of its cycle must the moon be for a total lunar eclipse to take place?

Answer 21

Full

Question 22

During the first half of the lunar month the moon is said to be _____.

Answer 22

Waxing

Question 23

The _______ equinox occurs near March 20th.

Answer 23

Spring

Question 24

What do we call the lunar phase when the eastern half of the moon is lighted?

Answer 24

Last Quarter

Question 25

We call the 365 named days from January 1 to December 31 the _______.

Answer 25

Calendar year

Question 26

_______ is the point of the moon’s orbit where it is closer to the earth.

Answer 26

Perigee

Question 27

________ occurs when the moon is in line with the earth and the sun.

Answer 27

Eclipse

Question 28

The defined lengths of _____ for the terms day, month, and year vary depending on the perspective from which they are viewed.

Answer 28

Time

Question 29

___ is a sudden explosion of plasma from the suns surface

Answer 29

solar flair

Question 30

____ is the part of the sun where thermonuclear reactions are believed to occur

Answer 30

Core

Question 31

____ is defined as the distance between the earth and the Sun

Answer 31

AU

Question 32

The sun is composed mostly of _____

Answer 32

Hydrogen

Question 33

___ are severe storms that can disrupt telecommunications on earth

Answer 33

Solar flares

Question 34

Protons and neutrons are high speed particles that ____ is mostly composed of

Answer 34

Solar Wind

Question 35

The suns ____ zone, hot plasma rises to the surface, cools and descends into the suns interior again

Answer 35

Convective

Question 36

____ are streams of plasma material that rise up into and descend from the suns corona, often forming loops

Answer 36

prominences

Question 37

____ are the dark areas on the surface of the sun

Answer 37

Sun spots

Question 38

____ is the classification of a coronal mass ejection

Answer 38

Solar Flares

Question 39

____ is the lower layers of the suns atmosphere

Answer 39

Chromosphere

Question 40

____ is the outer region of the suns atmosphere

Answer 40

Corona

Question 41

____ are the pointed jets on the chromosphere

Answer 41

Spicules

Question 42

The ___ zone is the region within the sun in which energy travels primarily as electromagnetic waves

Answer 42

Radiative

Question 43

The process of nuclear ____ releases an enormous amount of energy

Answer 43

Fussion

Question 44

The ___ is more spherical than the earth

Answer 44

the Moon

Question 45

The ___ is the visible surface of the sun

Answer 45

Photosphere

Question 46

The ___ is the instrument that astronomers use to produce an artificial solar eclipse when observing the suns atmosphere

Answer 46

Coronagraph

Question 47

The movement of ___ indicates that the sun rotates on its axis

Answer 47

Sunspots

Question 48

The suns surface exists in what state of matter?

Answer 48

Plasma