Stars #1
Stars #2
Stars #3
Stars #4
Stars #5
100
What are the two main elements found in stars?
Hydrogen and Helium
100
Our sun is a _________ star. a) giant b) white dwarf c) main sequence d) neutron
c) main sequence
100

What does kepler's first law say? 

Planets orbit are oval shaped and the sun is at a focus. 

100
It is a hot ball of glowing gases a) star b) galaxy c) planets d) universe
a) star
100

A group of stars that form a pattern is called a(n) __________ .

constellation

200
What determines whether a star becomes a red giant or a red SUPERgiant? a) Its brightness b) Its mass c) Its color
b) Its mass
200
A star is actually born when __________. a) nuclear fusion ends b) nuclear fission ends c) nuclear fusion begins d) nuclear fission begins
c) nuclear fusion begins
200
What is the best unit of measurement to describe the distance of stars from Earth? a) meter b) kilometer c) light-year d) year
c) light-year
200
What is a nebula? a) A group of five or more stars in a galaxy b) A cloud of gas and dust in which stars form c) A place stars go to die d) A cloud of small rocks in which stars form
b) A cloud of gas and dust in which stars form
200
The gravitational pull of a black hole is so strong that not even light can escape it. True or false?
True
300
Why did ancient civilizations use the stars? a) Planting crops b) Navigation c) Calendar d) All of the above
d) All of the above
300
Sailors use what star to navigate on long voyages? It is the brightest star in the night sky and it does not move its position in the sky throughout the course of the night. a) The Big Dipper b) The North Star
b) The North Star
300
Factors that control the apparent brightness of a star as seen from Earth. Select all that are true: a) how big it is b) how hot it is c) how old it is d) how far away it is
a) how big it is b) how hot it is c) how old it is d) how far away it is
300

What causes the seasons? 

Earth's Tilt 

300

What do you call a star that is spinning and very dense? 

Neutron Star

400
What is the temperature of a star with a blue color? a) cool b) hot c) medium for a star d) the same as the Sun
b) hot
400
What will be the final state of the Sun? a) white dwarf b) black hole c) supernova d) black dwarf
d) black dwarf
400

The brightness of a star is called its ___________. a) redshift b) parallax c) variableness d) luminosity

d) luminosity

400
These are the largest and brightest stars a) Supernovas b) Giants c) Supergiants d) Neutron stars
c) Supergiants
400

After a supernova a high mass star either becomes a __________ or a ___________ .

neutron star or black hole

500

Which color & temperature stars will live the longest? Why? 

Red / Cool stars 


They aren't using their fuel as fast

500
List the color of stars from hottest to coolest: (red, white, blue, yellow, orange)
blue, white, yellow, orange, red
500
How do stars begin? a) They emerge from black holes. b) When other stars shoot off smaller stars. c) When white dwarfs start generating light again. d) When fusion begins in gas clouds in space
d) When fusion begins in gas clouds in space.
500

What is is called when Earth is closest to the sun and when does this occur during the year? 

Perihelion 

January

500
The scientific study of stars is called _____________.
astronomy
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