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SCIENCE > Astronomy > Flashcards

Astronomy Flashcards

1
Q

Sun shines all day and all night

A

Midnight Sun

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2
Q

Planets mythology

A

Romans

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3
Q

Conventional Paradigm

A

according to science / million of years

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4
Q

Genesis Paradigm

A

Biblical / specific time

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5
Q

radioactive decay

A

Weak nuclear force

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6
Q

holds nucleus of atoms

A

Strong nuclear force

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7
Q

4 fundamental forces

A

Gravity
Electromagnetic
Weak
Strong

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8
Q

type of force found in SUN

A

Weak nuclear force

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9
Q

“exotic”
interact with ordinary matter

A

Dark matter

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10
Q

negative pressure
repelling force

A

Dark energy

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11
Q

Types of universe

A

Flat
close
open
accelerating

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12
Q

Our universe is____

A

Accelerating universe
(based on Big Bang)

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13
Q

STEADY STATE THEORY

WHO

A

Fred Hoyle

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14
Q

spaces filled as universe expands

A

Steady State Theory

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15
Q

INFLATIONARY THEORY

WHO

A

Alan Guth

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16
Q

OSCILLATING/ CYCLIC / PULSATING THEORY

WHO

A

Paul Steinhardt

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17
Q

Beginning and end

Bigbang + Big Crunch

A

Oscillating Theory

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18
Q

MOON PHASE CYCLE

DAYS

A

29.5 days

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19
Q

MOON ORBIT AROUND EARTH

DAYS

A

27.3 days

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20
Q

Spiral Galaxy

A

Milky Way

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21
Q

Elliptical Galaxy

A

Andromeda

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22
Q

Actual brightness of star

A

Absolute Magnitude

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23
Q

brightness received on Earth from a star

A

Apparent Magnitude

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24
Q

PLANET

retrograde motion

A

Venus

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25
Q

Mars moons

A

Phobos and Deimos

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26
Q

Many moons

A

Saturn

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27
Q

Fastest planet

A

Jupiter

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28
Q

Galilean moons what planet

A

Jupiter

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29
Q

Great dark spot

30
Q

rotating on its side

31
Q

large known dwarf planet

32
Q

310 years to complete 1 orbit

33
Q

lies beyond neptune

A

Kuiper belt

34
Q

outermost region of solar system

A

Oort cloud

35
Q

Precise observer
Stellar parallax

A

Tycho Brahe

36
Q

3 Laws of planetary motion

A

Law of Elliptical Orbits
Law of Equal Areas
Law of Harmonic Motion

37
Q

First star catalog

A

Hipparchus

38
Q

First to spot comet Halley

A

Charles Messier

39
Q

dark topographical features that can be observed on the lunar surface

40
Q

earth shape

A

irregular spheroid

41
Q

orbital speed

A

fastest in january

42
Q

northern winter shadow

43
Q

earth rotates evidence

A

Coriolis effect

44
Q

constellation rose at 8pm, two weeks later…

45
Q

at north, the sun appears overhead

46
Q

AM

A

before the median

47
Q

why do we see same side of the moon

A

rotation and revolution is the SAME

48
Q

nebular model

49
Q

slightly larger than earth

50
Q

short period comets

A

Kuiper belt

51
Q

No moons

A

Mercury and Venus

52
Q

most mass of the solar system

53
Q

Rotate on side

54
Q

too cold for water to exist in liquid

55
Q

Jupiter size

A

318x more massive than Earth

56
Q

most rapid when closer to the sun

what law

A

kepler law

57
Q

universe age

A

13.7 Billion

58
Q

Solar system age

A

4.5 billion

59
Q

Earth age

A

4.5 billion

60
Q

Big bang theory

A

Friedman
Lamaitre

61
Q

The universe has no beginning and end

A

Steady state Theory

62
Q

exponential expansion

A

Inflation theory

63
Q

father of astronomy

64
Q

discover ring of Saturn

65
Q

Vortex theory

66
Q

Collision theory

67
Q

Nebular Theory (pancake)

A

Kant-Laplace

68
Q

scientific name of Sun

69
Q

Sun is a ____

A

yellow dwarf

70
Q

discover dark matter

A

Fritz Zwicky

71
Q

coined “dark energy”

SCIENCE (12 decks)

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