Astronomy 1001 Test #3

Front 1

atmosphere=

Back 1

solar energy

Front 2

we have a ______ wich means we are ___

Back 2

radioactive core
geologically active

Front 3

Geological activity is drivin by

Back 3

radiation activity from the core

Front 4

Hot things ___ cold things ___

Back 4

rise
fall

Front 5

subducion zone-

Back 5

when one plate slides under another

Front 6

Earthquakes occur at the edges of the

Back 6

plates

Front 7

Extremestile

Back 7

-organism living in extreme inviroment

Front 8

___ bacteria were the first to use water

Back 8

Cyano

Front 9

Life changed the chemistry of atmosphere ________ Earth had a carbon atmosphere before (life) changed it

Back 9

photosythesis

Front 10

took about ______ years for oxygen to become a substantial part of the atmosphere

Back 10

1 billion

Front 11

Higher altitude in the atmopshere= ______

Back 11

colder
Sufuric acid

Front 12

who had the runaway greenhouse effect?

Back 12

Venus

Front 13

what is a key element to the atospheres of planets??

Back 13

volcanoes

Front 14

who had the runaway icehouse affect?why??

Back 14

mars
not enough mass ran out of internal material losing its atmosphere

Front 15

______ has the largest channel in the system

Back 15

venus

Front 16

which planets surface is all the same age??

Back 16

venus

Front 17

how is mars magnetic feild explained??

Back 17

some parts cooled faster than others

Front 18

earths magnetic field flips every ____
it takes ___ to flip

Back 18

33000 years
100 years

Front 19

(region where most particles slow down or are reversed) tear drop affect

Back 19

Magnetopause

Front 20

why doesnt venus have a global magnetic field??

Back 20

its too slow

Front 21

which planets rotates backwards and why??

Back 21

venus
probably interupted by something the size of jupiter it then was stabalizied by earth

Front 22

mercury has mountains because

Back 22

meteorites hit it as it was cooling

Front 23

reasons why mercury is mostly core

Back 23

Three possibilities
Solar nebula hotter than previously believed
Sun during T Tauri phase boiled off crust
Mercury had collision with object similar in size

Front 24

Mercury was found to have a weak global magnetic field because

Back 24

Mercury has a partially molten iron core

Front 25

Albedo-

Back 25

amount of reflected sunlight divided by amount of total incident

Front 26

Doppler shifting-

Back 26

that’s how we know how fast mercury is rotating
Away red shifing blue shifting toward

Front 27

moon has alot of

Back 27

nickel

Front 28

lighter in color and heavly cratered
dark areas

Back 28

Lunar maria dark areas
Highlands

Front 29

what percent of the moon does maria take up??

Back 29

5%

Front 30

Co-creation theory

Back 30

Fails of composition and density. They don’t match

Front 31

Fission theory

Back 31

Material thrust out from the gooey earth
Volital elements are gone
Coposition is why this theory failst material
Earths crust should be the same

Front 32

Capture theory

Back 32

Formed other places, was gravitaionally caught, but the mass issue, it would have to be perfect the criterea is way too high

Front 33

Collision-ejection theory

Back 33

Something the size of mars hit earth that material formed the moon, moon should be around the ecliptic, the density should be the same as earth, the composition should be thet same except for some vollutes

Front 34

Assuming that the fission theory is correct, how would the Earth and Moon compare?

Back 34

Moon would have identical average density to an Earth surface rock

Front 35

Mars does not produce a global magnetic field

Back 35

True

Front 36

Mars once had liquid water on its surface.

Back 36

True

Front 37

mars produces its own global magnetic fiel

Back 37

false

Front 38

Which of the following best describes the interor of Mar

Back 38

cold solid

Front 39

Which of the following explains the current condition of the Martian atmosphere

Back 39

runaway icehouse effect

Front 40

Mercury produces a global magnetic field, so which of the following statements must be true

Back 40

has a warm interior

Front 41

There is evidence of liquid water on Mercur

Back 41

false

Front 42

There is evidence of water on Mercury

Back 42

true

Front 43

Which of the following is a special characteristic of Mercury

Back 43

3-2 spin-orbit coupling

Front 44

Which of the following is not a theory to explain the unusually large iron core of Mercur

Back 44

collision with similar size object
solar nebula hotter than we currently believe
Sun boiling off the crust
few other elements other than iron existed in this part of the solar nebula

Front 45

Of the following objects with significant atmospheres, which has the most unusual atmospheric composition?

Back 45

earth

Front 46

The interior of Mercury is most similar to

Back 46

earth

Front 47

The surface of Mercury has scarps and crater similar to (the)

Back 47

the moon

Front 48

Which of the following terrestrial planets does/has not produce(d) a global magnetic field?

Back 48

venus

Front 49

The interior of Venus is heated by

Back 49

radioactive elements

Front 50

Venus is geologically active, so what must also be true?

Back 50

is chemically differentiated

Front 51

Which of the following explains the current temperature of Venus' atmosphere

Back 51

runaway greenhouse effect

Front 52

Which of the following is the most plausible theory explaining the
Moon's origin?

Back 52

collision-ejection

Front 53

Which of the following is not a greenhouse gas

Back 53

methane