Stars

Stars #1

100

What are the two main elements found in stars?

Hydrogen and Helium

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

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

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

500

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

Red / Cool stars 

They aren't using their fuel as fast

Stars #2

100

Our sun is a _________ star. a) giant b) white dwarf c) main sequence d) neutron

c) main sequence

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

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

400

What will be the final state of the Sun? a) white dwarf b) black hole c) supernova d) black dwarf

d) black dwarf

500

List the color of stars from hottest to coolest: (red, white, blue, yellow, orange)

blue, white, yellow, orange, red

Stars #3

100

What does kepler's first law say? 

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

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

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

400

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

d) luminosity

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.

Stars #4

100

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

a) star

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

300

What causes the seasons? 

Earth's Tilt 

400

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

c) Supergiants

500

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

Perihelion 

January

Stars #5

100

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

constellation

200

The gravitational pull of a black hole is so strong that not even light can escape it. True or false?

True

300

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

Neutron Star

400

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

neutron star or black hole

500

The scientific study of stars is called _____________.

astronomy