Exam 1 Flashcards

1
Q

Particle radiation from the sun is potent ion ally much more hazardous outside the earths

A

Magnetic field

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2
Q

The suns activity is closely related to

A

Sunspot number

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3
Q

Radio blackouts are caused by

A

Outburst solar flare

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4
Q

Geomagnetic storms range from

A

G1-G5

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5
Q

Solar radiation storms vary from

A

S1-S5

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6
Q

Radio blackouts vary from

A

R1-R5

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7
Q

Suns mass in the solar system

A

99.8%

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8
Q

3 types of planets

A

Terrestrial
Gaseous
Dwarf

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9
Q

Earth is ____ the mass of the sun

A

One millionth

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10
Q

Largest planet

A

Jupiter

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11
Q

Smallest planet

A

Mercury

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12
Q

Planets outside the solar system were found by

A

Gravity towards other stars

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13
Q

Most eccentric planets orbit

A

Pluto

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14
Q

1 AU

A

Sun to earth

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15
Q

70%
25%
5%

A

Hydrogen
Helium
Other stuff

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16
Q

Early universe
H2
He

A

75%
25%

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17
Q

Collapsing cloud that stars form in is often caused by a nearby exploding

A

Supernova

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18
Q

Hydrogen fusion into helium requires the core temp to be

A

10^7 K or higher

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19
Q

Theoretical lifetime of the sun

A

5 billion years

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20
Q

Neutron stars are composed of

A

Neutrons

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21
Q

Ends as a white dwarf

A

Red giant

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22
Q

Shortest lifespan

A

Massive star, red supergiant

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23
Q

Charged particles

A

N
P
He

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24
Q

Comets are made of

A

Ice and dust

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25
Q

Types of asteroids

A

C
S
M

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26
Q

Brightest asteroid

A

S

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27
Q

Most asteroids are located between

A

2AU - 3.5AU

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28
Q

Beyond the planets

A

Oort cloud

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29
Q

Greatest damage to spacecraft

A

Small objects

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30
Q

Albedo

A

Reflectivity of light

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31
Q

Planet with little to no atmosphere

A

Mercury

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32
Q

The suns charged particles follow the suns

A

Magnetic field lines

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33
Q

Escape velocity

A

Greatest near larger planets

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34
Q

Planet with the highest escape velocity

A

Jupiter

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35
Q

Two types of radiation

A

UV
GCR

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36
Q

Ionizing radiation in the electromagnetic spectrum includes

A

UV
X ray
Gamma

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37
Q

Solar wind is made of

A

Protons and electrons

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38
Q

SPEs

A

Large outbursts from the sun

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39
Q

The peak in the suns emission is in the

A

Visible band
Green yellow color

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40
Q

Solar activity cycle

A

11 yrs

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41
Q

Larger number of dark spots on the sun implies

A

Solar activity levels in the sun

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42
Q

Energy in the sun is produced by

A

Fusion of H to He

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43
Q

For each helium atom produced by H_____ electron neutrinos are generated

A

4

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44
Q

Solar wind travels

A

400 km/s

45
Q

Suns magnetic field reverses

A

22 years

46
Q

Solar magnetic field and solar winds extend to

A

Magnetosphere of earth

47
Q

Lowest layer of the earths atmosphere

A

Troposphere

48
Q

Photodissociation and photoionization of O2 and N2 take place in

A

Magnetosphere

49
Q

1 Grey

A

100 RAD

50
Q

Equivalent dose

A

Absorbed dose times radiation weighing factor

51
Q

1SV

A

100 REM

52
Q

SV

A

Grey times weighing factor

53
Q

First modern theory of the formation of the solar system through a nebular cloud

A

Kant in the 1700s

54
Q

A collapsing gas cloud that forms a star system increases its rotation rate because of the conservation of

A

Angular Momentum

55
Q

A protostar forms at

A

Center of collapsing gas cloud

56
Q

Sun formed

A

4.5 billion years ago

57
Q

Elements heavier than hydrogen and He are formed by

A

Fusion

58
Q

Comet material was brought back

A

Delta spacecraft in 2006

59
Q

Particles within the collapsing solar nebula disk begin to collide and collect accrete from the

A

Electrostatic force

60
Q

Gravity takes over when clumps reach the size of

A

A mountain

61
Q

Bodies greater than ____ are pulled into a spherical shape by gravity

A

480 km

62
Q

Moon formed

A

Body the size of mars and earth collided

63
Q

Mars two moons thought to be captured asteroids

A

Phobos and deimos

64
Q

Boundary outside which water is in a frozen state allowing gas and ice planets to form

A

Frost line

65
Q

Uranus blue green color

A

Methane gas

66
Q

Sun ends its life in

A

5 billion yrs

67
Q

Babylonian priests recorded the positions of stars

A

4,000 yrs ago

68
Q

Credited with developing the first rockets

A

Chinese

69
Q

Developed more accurate rockets for warfare for the British in early 1800s

A

William Conry

70
Q

First to launch a liquid fuel rocket

A

Goddard

71
Q

Father of astronautics

A

Tsiolkovsky

72
Q

Alan Shepard was the first American in space who also flew in

A

Apollo 14

73
Q

Germany pursued the development of rockets because

A

Not prohibited by treaty of Versailles

74
Q

Von Brauns wheel shaped space station concept to create

A

Artificial gravity

75
Q

Von Brauns red stone missile could have launched the first satellite but it was given to the navy to launch

A

Vanguard 1

76
Q

NASA

A

October 1 1960

77
Q

First person in space
April 12 1961

A

Yuri Gagarin

78
Q

Total Gemini flights between 1965-166

A

10

79
Q

Two launch vehicles for Apollo

A

Saturn V
Saturn 1B

80
Q

First Apollo moon landing

A

Apollo 11
July 16th 1969

81
Q

Apollo 12 visited

A

Surveyor 3

82
Q

First to use a lunar rover

A

Apollo 15

83
Q

Last Apollo mission

A

Apollo 17

84
Q

First space shuttle

A

Columbia
April 1981

85
Q

First to propose heliocentric

A

Aristarchus

86
Q

Accurate measures of planets by

A

Hipparchus

87
Q

Keplers first law

A

Planets orbit the sun in elliptical orbits with the sun at one focus

88
Q

Keplers third law

A

Cubes axis to orbital squared

89
Q

German V-2 was used by

A

US
USSR

90
Q

First V-2 launch from white sands

A

May 1946

91
Q

Bumper rocket

A

V-2 and aerobee

92
Q

First live subjects on suborbital flight

A

Bumper

93
Q

Jupiter-C launched to over 600 miles

A

September 20 1956

94
Q

First intercontinental ballistic missile

A

USSR
August 3 1957

95
Q

USSR ICMB ranged

A

8,800 km

96
Q

First satellite in orbit

A

Sputnik
R-7 rocket
October 4 1957

97
Q

Second satellite with Laika

A

Sputnik 2

98
Q

US first orbital satellite

A

January 31 1958
Jupiter C/Redstone

99
Q

Explorer 1 had internal and external

A

Temperature gauge

100
Q

Explorer 1 measured hits with an

A

Internal micrometeoroid detector

101
Q

Explorer 1 had both high power and low power

A

Transmitter

102
Q

Fuel for the V-2 and oxidizer

A

Liquid ethanol
Liquid oxygen

103
Q

V-2 parts manufactured in

A

Germany

104
Q

V-2 insulation for the propellant tank

A

Glass wool (fiberglass)

105
Q

V-2 turbine pumps powered by the reaction of

A

Hydrogen peroxide with sodium permanganate

106
Q

Used to steer the v-2

A

Carbon veins

107
Q

V-2 weight

A

14 tons

108
Q

Highest V-2 altitude

A

100 miles