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qrt2 > solar system > Flashcards

solar system Flashcards

1
Q

composed of the sun and its system of eight planets, their moons and other celestial objects

A

solar system

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2
Q

the solar system is located at the edge of one spiral arms called

A

orion arm

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3
Q

the orion arm is _ the way from the center of our galaxy called milky way

A

two thirds

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4
Q

a spiral galaxy consisting of 200-400 billion stars

A

milky way

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5
Q

the development of the telescope— led to the acceptance of the heliocentric perspective

A

by galileo in the 17th century and the works of johannes kepler and isaac newton

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6
Q

who claimed the heliocentric perspective

A

nicholas copernicus

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7
Q

who created the geocentric perspective

A

ptolemy

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8
Q

claims the sun is the center

A

heliocentric perspective

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9
Q

claims the earth is the center

A

geocentric perspective

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10
Q

astronomers divide the solar system into two distinct regions:

A

inner solar system
outer solar system

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11
Q

inner solar system consists of…

A

“rocks and metals”
mercury venus earth mars

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12
Q

outer solar system consists of

A

“gases”
jupiter saturn uranus neptune

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13
Q

who created the law of planetary motion

A

johannes kepler

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14
Q

johannes kepler describes the orbits of the planets as

A

ellipses

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15
Q

in elliptical orbit,

A

the distance from the sun varies from the planet’s revolution

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16
Q

the set of planets close to the sun

A

perihelion

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17
Q

the set of planets farther from the sun

A

aphelion

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18
Q

scientific name of the sun

A

sol

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19
Q

_% of all the rocks, dust and gas in the solar system

A

98

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20
Q

acts as a giant magnet

A

sun

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21
Q

how many earths can fit inside the sun if it was hollow?

A

1 million

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22
Q

temperature of the surface of the sun

A

6000 degrees celsius

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23
Q

temperature of the atmosphere of the sun

A

millions

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24
Q

if you were 70 pounds on earth, how heavy would you be on mercury?

A

27 pounds

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25
Q

how many days does it take for mercury to orbit the sun

A

88

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26
Q

in mercury, you _ during the day and you _ to death at night

A

burn & freeze

27
Q

it is the smallest planet of the solar system

A

mercury

28
Q

how many km away is mercury from the sun

A

58

29
Q

if you were 70 pounds on earth, how heavy would you be on venus?

A

63 pounds

30
Q

how many days does it take for venus to orbit the sun?

A

-224.701 days

31
Q

what are the only planets that have no moons

A

mercury and venus

32
Q

venus is similar to earth how?

A

it has mountains and valleys

33
Q

what is venus’ distance from the sun?

A

108 million km

34
Q

why can’t you live in venus?

A

it is way too hot

35
Q

how many days does it take for earth to orbit the sun?

A

365

36
Q

distance of the earth from the sun

A

150 million km

37
Q

earth’s moon is:

A

luna (roman) selene (greek)

38
Q

perfect combination of weather combination and atmosphere to keep us alive

A

earth

39
Q

if you were 70 pounds in earth, how heavy would you be on mars?

A

27 pounds

40
Q

distance of marks from the sun

A

228 million km

41
Q

once had streams, rivers, lakes, and an ocean

A

mars

42
Q

the two moons of the mars are:

A

deimos and phobos

43
Q

has the highest mountains and the deepest canyons

A

mars

44
Q

mars’ highest mountains and deepest canyons

A

olympus mons
valles marineris

45
Q

if you were 70 pounds on earth, how heavy would you be on jupiter?

A

185 pounds

46
Q

distance of jupiter from the sun

A

778 million km

47
Q

made of storms occurring for 300 years

A

great red spot

48
Q

how many moons does jupiter have?

A

68

49
Q

one huge ocean of hydrogen and water

A

jupiter

50
Q

the great red spot is constantly made of storms occurring for _ years.

A

300

51
Q

if you were 70 pounds on earth, how heavy are you on saturn?

A

82

52
Q

how wide are the rings of saturn?

A

169,800 miles wide, but less thicker than a football field

53
Q

similar to jupiter: ocean of liquid chemicals

A

saturn

54
Q

how many moons does saturn have?

A

62

55
Q

if you were 70 pounds on earth, how heavy would you be on uranus?

A

82

56
Q

what is the distance of saturn from the sun?

A

1,427 million km

57
Q

what is the distance from uranus to sun?

A

2,871 million km

58
Q

how many moons does uranus have

A

27

59
Q

it is the only planet that spins on its side

A

uranus

60
Q

fourth largest planet

A

neptune

61
Q

has a giant storm like jupiter called great dark spot

A

neptune

62
Q

neptune has a giant storm called

A

great dark spot

63
Q

eight and farthest known planet from the sun

A

neptune

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