Chapter 1

Question 1

Significance of 1 AU? (Kahoot)

Answer 1

Distance from Earth to Sun.

Question 2

Light Year (Kahoot)

Answer 2

Measure of DISTANCE not TIME!

Question 3

Astronomers use…. (Kahoot)

Answer 3

Imagination

Question 4

1st magnitude star (Kahoot)

Answer 4

Brightest

Question 5

Approximately how long ago did the Solar System Form? (Kahoot)

Answer 5

4.6 billion years ago

Question 6

Point of Celestial Sphere (CS) pointing directly down (Kahoot)

Answer 6

Nadir

Question 7

True or False: The Celestial Equator is the projection of Earth’s Equator on the CS (Kahoot)

Answer 7

True

Question 8

Why is Polaris an important star? (Kahoot)

Answer 8

It’s directly over the north pole. Doesnt set

Question 9

How long does one precession take? (Kahoot)

Answer 9

26,000 years

Question 10

1 Earth rotation takes (Kahoot)

Answer 10

24 hours

Question 11

True or False: The Earth is closer to the Sun in January (Kahoot)

Answer 11

True

Question 12

What causes the seasons? (Kahoot)

Answer 12

Tilt of the Earth

Question 13

Where is the Sun during the Summer Solstice? (Kahoot)

Answer 13

Furthest N Point

Question 14

True or False: The angle of incidence is steeper in the N Hemisphere in July (Kahoot)

Answer 14

True

Question 15

Three Important Questions:

Answer 15

Where are you in the Universe?
How does human history fit into the history of the Universe?
Why study Astronomy?

Question 16

Planet Order:

Answer 16

Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune

Question 17

Solar Neighborhood Total AU:

Answer 17

About 11,000 AU

Question 18

Distance between Mars and Sun Total AU:

Answer 18

1.5 AU

Question 19

Distance between Earth and Sun Total Au:

Answer 19

1 AU

Question 20

A Light Year is a _______ not a time

Answer 20

Distance

Question 21

1 Light Year (ly) = distance traveled by light in 1 year =

Answer 21

1.1 million AU

Question 22

How many minutes does it take Sunlight to reach the Earth?

Answer 22

8 minutes

Question 23

The Milky Way Galaxy contains our _______ _______

Answer 23

Solar System

Question 24

The Universe is about _____________ years old

Answer 24

About 14 billion

Question 25

How did the Universe begin?

Answer 25

Big Bang Theory

Question 26

Our Solar System is about ___________ years old?

Answer 26

About 4.6 Billion

Question 27

How many years ago was there the earliest forms of microscopic life?

Answer 27

About 3.4 billion

Question 28

How many years ago was there the emergence of life on land?

Answer 28

About 0.4 billion

Question 29

How long ago did dinosaurs go extinct?

Answer 29

About 65 million

Question 30

How many years ago did civilization begin?

Answer 30

About 10,000

Question 31

__________ is very new to the Universe

Answer 31

Humanity

Question 32

____________ are formed to explain how nature works and test with experiments/observations

Answer 32

Hypotheses

Question 33

_____________ are brightest stars that appear to form groups

Answer 33

Constellations

Question 34

Constellations represent ________ and _______________ ___________

Answer 34

Heroes | Mythological Figures

Question 35

Projection Effect:

Answer 35

Stars appear to be next to each other, but they are very far away

Question 36

Alpha =

Answer 36

Brightest

Question 37

Beta =

Answer 37

Second Brightest

Question 38

Brightest Stars' Magnitude =

Answer 38

1st Magnitude

Question 39

Faintest Stars' Magnitude =

Answer 39

6th Magnitude

Question 40

1st Magnitude Stars appear _____ times brighter than 6th Magnitude Stars

Answer 40

100

Question 41

_____ is a measure of light energy from a star that hits a collecting area of one square meter in one second

Answer 41

Flux

Question 42

Fa/Fb=(2.51)^(mB-mA)

Answer 42

Flux Equation

Question 43

Fa/Fb =

Answer 43

Flux Ratio

Question 44

(2.15) =

Answer 44

Constant

Question 45

(mB-mA) =

Answer 45

Magnitude Difference

Question 46

______ is the point on the CS directly overhead

Answer 46

Zenith

Question 47

______ is the point on the CS directly underneath

Answer 47

Nadir

Question 48

__________ __________ is the projection of Earth's Equator onto the CS

Answer 48

Celestial Equator

Question 49

_______ ________ _______ is the projection of Earth's North Pole onto CS

Answer 49

North Celestial Pole

Question 50

Degree of a full circle

Answer 50

360 degrees

Question 51

Arc Minutes

Answer 51

'

Question 52

Arc Seconds

Answer 52

"

Question 53

L =

Answer 53

Angular Distance

Question 54

Do all stars set?

Answer 54

No

Question 55

________ have scientific limits

Answer 55

Models

Question 56

True or False: Stars are there day and night?

Answer 56

True

Question 57

True or False: Polaris is the brightest star in the sky?

Answer 57

False (its the 50th brightest star)

Question 58

Polaris is important because of its _________

Answer 58

Position

Question 59

_________ is the "wobbling" of Earth's axis of rotation

Answer 59

Precession

Question 60

Precession takes about _________ years

Answer 60

26,000

Question 61

Rotation =

Answer 61

24 hours

Question 62

Revolution =

Answer 62

365 days

Question 63

The time of day or night depends on your __________

Answer 63

Location

Question 64

Earth's axis of rotation is ____________________

Answer 64

Inclined by 24.3 degrees

Question 65

Tilt of axis cause the __________

Answer 65

Seasons

Question 66

Vernal Equinox (Spring)

Answer 66

Sun crosses Celestial Equator going North

Question 67

Summer Solstice

Answer 67

Sun is at furthest North Point

Question 68

Autumn Equinox (Fall)

Answer 68

Sun crosses Celestial Equator going South

Question 69

Winter Solstice

Answer 69

Sun is at furthest South Point

Question 70

We receive more energy from the Sun when it is shining onto the Earth's surface under a steeper angle of __________

Answer 70

Incidence

Question 71

_______________ = a set of beliefs that appears to include scientific ideas, but does not follow basic rules of science

Answer 71

Pseudoscience

Question 72

True or False: Astrology is a pseudoscience?

Answer 72

True