Star

Question 0

What is a star called and made up of when it first starts

Answer 0

A star is called a nebula and is a cloud of dust and gas when it is first starting

Question 1

What happens when a planet gets closer to the sun or a star

Answer 1

The faster it orbits terrestrial planets orbit faster than Jovian planets

Question 2

What needs to happen in order for a star to be born

Answer 2

Nuclear fusion takes place and energy is created

Question 3

What star is the average star in the center of our solar system

Answer 3

The sun is in the middle of our solar system and is an average star

Question 4

What do stars burn

Answer 4

Stars burn converting hydrogen into helium
called nuclear fusion
as a star ages there will be less hydrogen and more helium

Question 5

What color are the hottest stars and what color are the coldest stars

Answer 5

The hottest stars are labeled as blue the coldest stars are labeled as red

Question 6

What percent of stars are in the main sequence group otherwise known as the average size group

Answer 6

90% of stars are in the main sequence group this includes the sun

Question 7

What happens to giant stars

Answer 7

Giant stars become white dwarfs become black dwarf otherwise known as dead stars

this is also the expected pass the sun will take

Question 8

What happens to a supergiant

Answer 8

A supergiant eventually will explode in a supernova event

Question 9

What is the age of our universe approximately

Answer 9

Our universe is 10 to 15,000,000,000 years old

Question 10

What is the age of our solar system

Answer 10

Our solar system is 4.6 billion years old

Question 11

What galaxy do we live in and what is it shaped like

Answer 11

We live in the Milky Way galaxy and it is a spiral shape

Question 12

What are they universal begin with and what is it called

Answer 12

The universe began it was an explosion otherwise known as the big bang THEORY

Question 13

Because of the Big Bang Theory what is happening and continuing to happen with our universe

Answer 13

Our universe has always been increasing in size and is still increasing in size today

Question 14

What is evidence that our universe is expanding

Answer 14

universe is expanding comes from red shift
galaxies exhibit a red shifted wave length
means they are moving away from us

Question 15

How do you measure the properties of light

Answer 15

Spectroscope

Question 16

Astronomy

Answer 16

The study of the universe stars planets and all other objects in space

Question 17

How did the universe begin

Answer 17

Scientists believe the universe began with a big bang hence the big bang Theory

Question 18

The big bang Theory

Answer 18

All matter and energy started out in a small area
gigantic explosion Matter began to organize into particle’s and Atoms
atoms became organized into celestial bodies

Question 19

Evidence for the big bang

Answer 19

red shift Doppler effect

cosmic background radiation

Question 20

The Doppler effect

Answer 20

shifting of wavelengths meaning the Doppler effect

the road to movement between earth and other celestial objects causes the Doppler effect

Question 21

What does the Doppler effect show and tell us

Answer 21

something is moving away you have a red shift

something is moving towards you you have a blue shifted wavelengths

Question 22

How do you see the wave links also known as the Doppler effect

Answer 22

Scenario one; if earth and a celestial object are coming closer the electromagnetic waves represent a blue shift
Scenario two; if earth and a celestial object are moving farther apart the electromagnetic waves resulting in a red shift

Question 23

Red shift

Answer 23

Objects that display red shift are moving away from us red equals away

Question 24

Blue shift

Answer 24

Objects moving toward us show a blueshift blue equals towards you

Question 25

What idea do the Doppler effect support

Answer 25

the idea that the universe is expanding light from stars and all galaxies are shifted to the red end of the spectrum red shift indicates that the universe is expanding in all directions

Question 26

What is a galaxy

Answer 26

collection of billions of stars gas and debris held together by gravity classified according to their shape

Question 27

Spiral

Answer 27

IThe shape of our galaxy is spiral galaxies called the Milky Way the Milky Way has over 200 billion stars

Question 28

Milky Way our galaxy

Answer 28

It's called the Milky Way because at night it creates a white streak in the sky that has a milky appearance

Question 29

Stars

Answer 29

Large ball of gas held together by gravity produces great amount of energy and shines starshine nuclear fusion in its core stars release energy which radiates into outerspace

Question 30

Nuclear fusion

Answer 30

The combining of the nuclei of small elements to form nuclei of larger elements with the mass being converted into energy can only occur in extremely high temperature and pressure conditions

Question 31

What are two characteristics used to classify stars

Answer 31

Luminosity and temperature

Question 32

Luminosity

Answer 32

The actual brightness of a star

Question 33

Main sequence stars

Answer 33

about 90% of stars Most spend majority of their lifespan as a main sequence star

Question 34

Giant stars

Answer 34

Red orange and yellow giant stars rare type of star commonly seen in the night sky because of their large size 10 times or more the diameter of the sun

Question 35

Supergiants

Answer 35

They can be anywhere from 100 to thousand times the diameter of the sun

Question 36

White dwarfs

Answer 36

Considered small around the size of Earth

Question 37

What do you all stars originate from

Answer 37

Clouds of gas and dust molecules called nebula gravity causes gas and dust clouds to clump forming larger balls of gas and dust molecules nuclear fusion begins the ball begins to shine large amounts of electromagnetic energy and a star is born

Question 38

Part of our solar system

Answer 38

Most of the mass was in a solar system is located in the sun about 99%

Question 39

Satellites

Answer 39

Any object that orbits or revolves around another object the plan is afterwards meteoroids and comets are satellites of the sun and the moon or satellite a planet or astroids

Question 40

astroids

Answer 40

``` a solid rock metallic body orbits the sun astroids have regular shape smaller called minor planets astroid belt between Mars and Jupiter ```

Question 41

Comets

Answer 41

composed of solids that easily change to gases when heated water and methane mixed with rock or metallic solids Comets get close to the sun some of their ices turn to gas

Question 42

Meteroids

Answer 42

when meteoroids burn up or vaporize they leave a brief visual streak called shooting stars or meteors meteor lands on earth surface it is called a meteorite

Question 43

Meteor

Answer 43

Mistakenly called shooting stars