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SCIENCE > Astronomy > Flashcards

Astronomy Flashcards

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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
Mars moons
Phobos and Deimos
26
Many moons
Saturn
27
Fastest planet
Jupiter
28
Galilean moons what planet
Jupiter
29
Great dark spot
Neptune
30
rotating on its side
Uranus
31
large known dwarf planet
Eris
32
310 years to complete 1 orbit
Makemake
33
lies beyond neptune
Kuiper belt
34
outermost region of solar system
Oort cloud
35
Precise observer Stellar parallax
Tycho Brahe
36
3 Laws of planetary motion
Law of Elliptical Orbits Law of Equal Areas Law of Harmonic Motion
37
First star catalog
Hipparchus
38
First to spot comet Halley
Charles Messier
39
dark topographical features that can be observed on the lunar surface
maria
40
earth shape
irregular spheroid
41
orbital speed
fastest in january
42
northern winter shadow
longest
43
earth rotates evidence
Coriolis effect
44
constellation rose at 8pm, two weeks later...
7 pm
45
at north, the sun appears overhead
never
46
AM
before the median
47
why do we see same side of the moon
rotation and revolution is the SAME
48
nebular model
supernova
49
slightly larger than earth
Mercury
50
short period comets
Kuiper belt
51
No moons
Mercury and Venus
52
most mass of the solar system
Sun
53
Rotate on side
Uranus
54
too cold for water to exist in liquid
Mars
55
Jupiter size
318x more massive than Earth
56
most rapid when closer to the sun what law
kepler law
57
universe age
13.7 Billion
58
Solar system age
4.5 billion
59
Earth age
4.5 billion
60
Big bang theory
Friedman Lamaitre
61
The universe has no beginning and end
Steady state Theory
62
exponential expansion
Inflation theory
63
father of astronomy
Galileo
64
discover ring of Saturn
Galileo
65
Vortex theory
Descartes
66
Collision theory
Buffon
67
Nebular Theory (pancake)
Kant-Laplace
68
scientific name of Sun
Sol
69
Sun is a ____
yellow dwarf
70
discover dark matter
Fritz Zwicky
71
coined "dark energy"
Turner

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