Astronomy

Question 1

Approximately the age of the universe

Answer 1

13.8 billion

Question 2

Galaxy in which we live

Answer 2

Milky way

Question 3

Included in definition of the universe

Answer 3

Matter and energy

Question 4

Collection of stars

Answer 4

Galaxy

Question 5

“All that exists”

Answer 5

Universe

Question 6

Number of galaxies in the universe we know today

Answer 6

Billions

Question 7

Not absolute or constant: depends on something else

Answer 7

Relative

Question 8

Sense of anxiety and distorientation in drastically new situations

Answer 8

Culture shock

Question 9

Number of galaxies in known universe 100 years ago

Answer 9

One

Question 10

Which of the following describes galaxies
1 look very different from earth
2 changing or having various stages
3 trillions of years old

Answer 10

A.) 1 and 2 only

Question 11

If “all that exists” in the universe is relative, it depends on
A.) who you are. C.) the time you live in.

B.) where you live. D.) all of the above

Answer 11

All of the above

Question 12

Place the terms in the correct order, from largest to smallest

A.) universe, planets, stars, galaxies
B.) universe, galaxies, stars, galaxies
C.) planets, stars, galaxies, universe
D.) galaxies, universe, stars, planets

Answer 12

B. Universe, galaxies, stars, planets

Question 13

Our concept of “universe”
A.) has never varied over time. C.) includes matter but not energy. B.) includes stars only. D.) depends on many factors

Answer 13

D.) depends on many factors

Question 14

How was the universe thought of 100 years ago in comparison to what it is known to be today?

A.) it was thought to be larger.
B.) it was thought to be the same size.
C.) it was thought to be smaller.
D.) no one knows the size of the universe today

Answer 14

C.) it was thought to be smaller

Question 15

Local knowledge about the universe has helped different groups of people
A.) plan times of year to gather food
B.) navigate across waterways.
C.) prepare for changes in seasons
D.) all of the above

Answer 15

D.) all of the above

Question 16

Our our current knowledge of the universe
1. Is complete and will not change in the future.
2. Is constantly being revised with new information.
3. May change drastically during your lifetime

Answer 16

C. 2 and 3 only

Question 17

If you compare the number of years since the birth of the universe to the number of people on earth, the ratio is approximately.

A.) 2:1.
B.)1:2
C.)2000:1
D.)20:1

Answer 17

A.) 2:1

Question 18

Matter is different from energy, since energy does not have.
A.) colour.
B.) mass or volume.
C.) ability to do work
D.) heat

Answer 18

B.) mass or volume

Question 19

The universe includes
A.) matter and energy only
B.) matter, energy, and stars only
C.) matter, energy, stars, and galaxies only.
D matter, energy, stars, galaxies, and the space in which it all exists.

Answer 19

D.) matter, energy, stars, galaxies and the space in which it all exists.

Question 20

Pathway that objects including the sun, moon, and planets appear to take in the sky, best observed toward the southern horizon

Answer 20

What is the ecliptic

Question 21

Patterns of stars, including those that rotate during the night

Answer 21

What is the constellation

Question 22

Star that remains stationary during the night in the northern hemisphere

Answer 22

What is the north star

Question 23

Term for unusual movement of planets, compared to stars

Answer 23

What is retrograde motion

Question 24

Examples of unusual directions in which planets appear to move

Answer 24

Slows down, stops, goes backwards

Question 25

Large imaginary ball of objects in the night sky that appears to rotate around earth

Answer 25

What is the celestial sphere

Question 26

Uses celestial coordinates of an objects in the night sky that appears to rotate around earth

Answer 26

What is the azimuth of altitude

Question 27

Divides the celestial sphere into northern and southern celestial hemispheres.

Answer 27

What is the celestial equatoror

Question 28

Compass direction of apparent movement of objects in celestial sphere as viewed from earth

Answer 28

What is east to west

Question 29

Actual direction of rotation of earth as viewed from the north pole.

Answer 29

What is west to east

Question 30

A pathway in which some planets seem to loop back across the sky

Answer 30

Retrograde motion

Question 31

Imaginary roasting sphere within which lie all objects of the night sky

Answer 31

Celestial sphere

Question 32

Smaller grouping of stars in a constellation

Answer 32

Asterism

Question 33

Common path the sun, moon, and planets appear to take across the sky

Answer 33

Ecliptic

Question 34

Group of stars that forms a pattern in the sky

Answer 34

Constellation

Question 35

Angle of a celestial object measured up from the horizon

Answer 35

Altitude

Question 36

Angle of direction of celestial object measured clockwise from north

Answer 36

Azimuth

Question 37

Which constellations can be seen all year in Canada A.) all constellations B.) constellations near the north celestial pole C.) constellations near the south celestial pole D.) constellations near the celestial equator

Answer 37

B.) constellations near the north celestial pole

Question 38

Which of the following will appear in different positions during any one night? 1 constellations 2 moon 3 planets

Answer 38

D.) 1, 2, and 3

Question 39

Groups of stars in the sky have 1 have changed their locations over the past thousand years. 2 were given different names by different cultures. 3 were seen as different shapes by different cultures.

Answer 39

C.) 2 and 3 only

Question 40

We know that many groups of people had accurate knowledge about the night sky long ago, from certain types of surviving evidence such as A.) cave paintings B.) stone monuments D.) all of the above

Answer 40

D.) all of the above

Question 41

Past and present knowledge about objects in the sky has been used for 1 navigation at sea 2 finding directions on land 3 timing of crop planting and harvesting

Answer 41

A. 1, 2, and 3

Question 42

How many official constellations are listed by the International Astronomical union A.) 20 B.) 68 C.) 88 D.) there is no set of constellations

Answer 42

C.) 88

Question 43

An example of an asterisk is A.) Orion. B.) the big dipper C.) the north star D.) Cygnus

Answer 43

B.) the big dipper

Question 44

The celestial sphere A.) rotates from west to east during the night. B.) has celestial objects at different distances from earth. C.) shows only the locations of stars. D.) rotates around earths axis

Answer 44

D.) rotates around earths axis.

Question 45

What portion of the celestial sphere can be seen by an observer on earth? A.) All of it B.) a very small portion only C.) varies with the observers location on earth D.) one half

Answer 45

D.) One half

Question 46

The word planet comes from an Ancient Greek word that means wanderer. The Greeks used this word for the planets they observed based on A.) planets being viewed along the plane of the ellipse B.) some planets having moons C.) different movements of planets among the fixed background stars D.) planets being brighter than stars

Answer 46

C.) different movements of planets among the fixed background stars

Question 47

We see different stars at different times of the year . What causes this? A.) the movement of the stars B.) earths orbit around the sun C.) the moons orbit around earth D.) the celestial sphere rotating around the celestial poles

Answer 47

B.) earths orbit around the sun

Question 48

The celestial sphere is divided into two equal hemispheres by A.) the celestial poles. B.) earths rotational axis C.) the celestial equator D.) all of the above

Answer 48

C.) the celestial equator

Question 49

The ecliptic is A.) the suns path across the sky B.) the date of a total eclipse C.) not near the path of planets D,) unrelated to the moons path

Answer 49

A.) the suns path across the sky

Question 50

How many coordinates are needed to find an object on the celestial sphere? A.) 1 B.)2 C.)3 D.) more than 3

Answer 50

B.(2

Question 51

An azimuth of 265 would indicate that a celestial object would be located above a point near which compass direction? A.)N B.) S C.) E D.) W

Answer 51

D.) W

Question 52

A stars position appears to be half way between the horizon and directly overhead. The star would have an altitude of.. A.) 50 B.) 45 C.) 90 D.) 180

Answer 52

B.) 45

Question 54

The altitude and azimuth of an object in the sky change depending upon A.) the time of night B.) the time of year C.) the location of the observer on earth D.) all of the above

Answer 54

D.) all of the above

Question 55

The rising suns location on the summer solstice A.) can be predicted at any particular location on earth B.) can be predicted with only computers C.) varies with the phases of the moon D.) varies each year

Answer 55

A.) can be predicted at any particular location on earth

Question 56

Place the follow in celestial objects in order, from largest to smallest A.) star. Asterism, constellation, galaxy B.’ Constellation, galaxy, asterism, star C.) galaxy, asterism,constellation,star D.) galaxy, constellation, asterism, star

Answer 56

D. ) Galaxy, constellation, asterism, star

Question 57

T or F Luminosity is the measure of the total light given off by a star per second

Answer 57

False

Question 58

T or F Two stars with the same absolute magnitude always have the same brightness in earths night sky.

Answer 58

False they do not have the same

Question 59

T or F Bluse stars are the hottest stars

Answer 59

True

Question 60

T or F Our sun is one of the brightest and hottest stars

Answer 60

False it’s average based off of the H R diagram

Question 61

T or F Spectral lines of a star show which elements it’s made of

Answer 61

True

Question 62

T or F Most stars are single stars, Ike the sun

Answer 62

False astronomers discovered they most stars are binary

Question 63

T or F Stars can vary in mass from much smaller than the sun to more than 100 times its mass

Answer 63

True

Question 64

T or F Half of all stars are found on the main sequence of the H R diagram

Answer 64

False it’s actually 90 percent of allstars

Question 65

Red stars such as red giants and supergiants are all cooler and less luminous than the sun

Answer 65

False there are cooler but more luminous

Question 66

The H R diagram has an X axis showing lower surface temperatures on the left.

Answer 66

False it’s showing the left

Question 67

Gravity Held Collection of stars, gas, and dust

Answer 67

Galaxy

Question 68

Massive explosion of outer part of star

Answer 68

Supernova

Question 69

The galaxy nearest to ours

Answer 69

Andromeda

Question 70

Brightness

Answer 70

Luminosity

Question 71

Light cannot escape its gravity

Answer 71

Black hole

Question 72

Distance light travels in a year

Answer 72

Light year

Question 73

Smaller groups of stars within a galaxy

Answer 73

Star cluster

Question 74

Central diagonal band of stars in HR diagram

Answer 74

Main sequence

Question 75

Our home galaxy

Answer 75

Milky Way

Question 76

Extremely dense star, about 29 km in diameter

Answer 76

Neutron star

Question 77

Which type of telescopes can be located on earth 1 radio 2 X ray 3 optical

Answer 77

1 and 3 only

Question 78

The usual measurement for distances between stars and galaxies is the.. A.) astronomical unit B.) kilometre C.) light year D.)metre

Answer 78

C.) light year

Question 79

Approximately how many stars are there in the Milky Way galaxy? A.) 400 million B.) 4 billion C.) 400 billion D.) 400 trillion

Answer 79

C.) 400 billion

Question 80

When we see stars today we are seeing them as A. They looked in the past B.) they look currently C.) they will look in the future D.) they looked last year

Answer 80

A. ) they looked in the past

Question 81

Who first described the Milky Way as a huge , flattened disk of billions of stars A.) Galileo B.) Hubble C.) hertsprung D.) Herschel

Answer 81

D.) Herschel

Question 82

The Milky Way is which type of galaxy A.) elliptical B.) spiral C.) irregular D.) we can’t tell which shape

Answer 82

B.) spiral

Question 83

The smallest percentage of galaxies has which shape A.) elliptical B.) spiral C.) irregular D.) all galaxy shapes are equally common

Answer 83

C.) irregular

Question 84

Where are older stars found in spiral galaxies A.) outer edges of the galaxy B.) spiral arms C.) central core D.) no particular location , equally spread within the galaxy

Answer 84

C.) central core

Question 85

Open and globular are types of A.) galaxies B.) star cluster C.) black holes D.stars

Answer 85

B.) star clusters

Question 86

The mass of a star can be determined by observing A.) the size of a star in a telescope B.) the elements seen in a spectroscope C.) the colour of a star D.) the size and time of orbit of binary stars

Answer 86

C.) the colour of the star

Question 87

Which characteristics are related, according to the herzsprung Russel diagram 1 luminosity 2 temperature 3 colour

Answer 87

D.) 1, 2, and 3

Question 88

How long will it be before the sun becomes a red giant

Answer 88

5 million years

Question 89

Stars that are not on the main sequence of the HR diagram include A.) cool but very bright red supergiants B.) white dwarfs C.)stars at the end of their life cycles D.) all of the above

Answer 89

D. All ob fthe above

Question 90

Parallax and triangulation 1 involve changes in star positions compared to a fixed background 2 involve geometry and angles 3 can be used for stars more than 1000 lay away

Answer 90

A.) 1 and 2 only

Question 91

Neutron stars are formed by 1stars that are initially 10 solar masses 2 a core of about 2 km in diameter 3electrons combining with protons to become neutrons

Answer 91

B.) 1 and 3 only

Question 92

Wavelengths longer for objects moving away

Answer 92

Redshifted

Question 93

Changes in sound or light wavelengths for moving object

Answer 93

Doppler effect

Question 94

Idea of universe very small and dense 13.8 billion years ago, then rapidly getting bigger

Answer 94

Big Bang theory

Question 95

Study of beginnings and changes in the universe

Answer 95

Cosmology

Question 96

Lines produced by stars in a spectroscope

Answer 96

Spectral lines

Question 97

Refers to the increasing size of the universe

Answer 97

Expanding

Question 98

Missing mass in universe, doesn’t emit light f

Answer 98

Dark matter

Question 99

Wavelengths shortened for objects getting closer

Answer 99

Ning Blue Stifterkjo

Question 100

We see different stars at different times of the year. What causes this? A.) the movement of the stars B.) earths orbit around the sun C.) the moons orbit around earth D. The celestial sphere rotating around the celestial poles

Answer 100

B.) earths orbit around the sun

Question 101

The celestial sphere is divided into two equal hemispheres by A.) the celestial poles B.) earths rotational axis C.) the celestial equator D.) all of the above

Answer 101

C.) the celestial equator

Question 102

The ecliptic is A.) the suns path across the sky B.) the date of a total eclipse. C.) not near the path of planets D.) unrelated to the moons path.

Answer 102

A.) the suns path across the sky

Question 103

How many coordinates are needed to find an object on the celestial sphere A.) 1 B.) 2 C.) 3 D.) more than 3

Answer 103

B.) 2

Question 104

An azimuth of 265’ would indicate that a celestial object would be located above a point near which compass direction? A.) N B.) S C.) E D.) W

Answer 104

D.) W

Question 105

A stars position appears to be halfway between the horizon and directly overhead. The star would have an altitude of A.) 50’ B.) 45’ C.) 90’ D.) 180’

Answer 105

B.) 45’