Science 9Th-Sun, Stars And Galaxies

Front 1

A complete solar activity cycle occurred between these years.

Back 1

1944 and 1954

Front 2

Solar activity that starts a chain of events that affect us on earth are called?

Back 2

Sunspots, solar flares, solar winds, ( auroras, telecommunication problems)

Front 3

Stars that have a mass 20 times more than our sun can produce what?

Back 3

Black Holes

Front 4

It has been predicted that because of the size of the Sun it will eventually turn into what?

Back 4

A red giant and then a white dwarf

Front 5

The color Blue stands for the Hottest or the Coldest star?

Back 5

Hottest star

Front 6

Hydrostatic equilibrium is the balance beween what inward force and what outward force?

Back 6

Inward force of gravity and outward force of radiation

Front 7

What person classified galaxies according to their shape?

Back 7

Edwin Hubble

Front 8

The star and constellation at my zenith is Polaris in Ursa Minor, where am I standing?

Back 8

I'm standing at the North Pole.

Front 9

The sun and earth are located in the_______ of the Milky Way.

Back 9

Disk of the Milky Way.

Front 10

The tail of a comet always faces away from the Sun due to what?

Back 10

Solar Wind.

Front 11

What type of constellations never set?

Back 11

Circumpolar constellations never set.

Front 12

You have done a lab of solar cycles. How often do they occur?

Back 12

Every 11 years

Front 13

Convection is the movement of molecules in a circular pattern. What is acually happening

Back 13

The transfer of heat from one place to another.

Front 14

They produce flares, have cooler areas and are in the photoshpere. What am I called?

Back 14

I'm called a Sunspot.

Front 15

Groups of stars that form a familiar pattern are called?

Back 15

Constellations

Front 16

What is a Zenith.

Back 16

A Zenith is a point directly above your head. (Stars directly overhead are at your Zenith.)

Front 17

The layer of the sun which we can see from Earth is called what?

Back 17

Photosphere.

Front 18

I am a rocky body that burns up in Earth's atmosphere (also called a shooting star). What is my name?

Back 18

I'm a meteor.

Front 19

What occurs primarily in the core of the Sun?

Back 19

Nuclear fusion

Front 20

In a star the inward pull of gravity is counteracted by the______________________________________________?

Back 20

Outward pressure created by the radiation of nuclear fusion

Front 21

What are most stars composed of

Back 21

Hydrogen and helium.

Front 22

What starts to form in a Nebula?

Back 22

A Star

Front 23

The H-R diagram plots what two major factors?

Back 23

Temperature and absolute magnitude.

Front 24

I extend way out into the solar system from the sun, what am I called?

Back 24

The Corona

Front 25

I am made of charged particles or ions what am I called?

Back 25

Solar wind

Front 26

Absolute magnitude is defined this way?

Back 26

The brightness of an object placed at a fixed distance with other objects.

Front 27

How bright a star appears from earth is considered________ magnitude.

Back 27

Apparent magnitude.

Front 28

What is located in the upper Left corner of the H-R diagram

Back 28

Hot, luminous stars

Front 29

What is made in the spiral arms of the Milky Way?

Back 29

Newly made stars

Front 30

What galaxy is spiral in Shape

Back 30

The Milky Way galaxy.

Front 31

How do newly formed stars obtain their energy?

Back 31

By converting hydrogen to helium.

Front 32

Is our sun considered to be a small star, an average size star, Nebula or red giant?

Back 32

Average size star

Front 33

What time period on earth were there no sun spots on the sun?

Back 33

During the Little Ice Age (1640-1700)

Front 34

You have three stars with the apparent magnitudes of -2, +2, and -9. Which is the brightest?

Back 34

-9

Front 35

What is another name for Protostar?

Back 35

Early star of first star.

Front 36

The Milky way belongs to a small cluster of galaxies known as what?

Back 36

the local group

Front 37

How is the shape of organizing galaxies done?

Back 37

Theuse of the hubble tuning fork.

Front 38

Scientist have come up with 13 Billion years as the age of what?

Back 38

the universe

Front 39

Explain the Big Bang Theory?

Back 39

The universe began a point and has been expanding ever since.

Front 40

Which constellation is not circumpolar?

Back 40

Orion

Front 41

The North Star never changes its position because the Earth's axis is pointed at it.

Back 41

True

Front 42

Active stars are locatd in the Main Sequence of the H-R diagram.

Back 42

True