The Sun
Our sun will most likely become this during the next stage in its life cycle?
Red Giant
This planet is approximately 150 000 000km (1 AU) from the Sun.
the Earth
Which planet is hottest?
Venus
What does a planet's orbital period give us?
Its year
This process fuels the energy given off by stars.
Nuclear Fusion
If a luminous object is moving towards us, the waves become ____________ (shorter/longer). The light becomes ________ (blue/red) shifted.
Shorter, blue shifted
The Sun is mostly made up of which element?
Hydrogen
List the 8 planets of the solar system in order from the Sun
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Which planet rotates 90 degrees to the other planets (on its side)
Uranus
What does a planet's rotational period give us?
It's day
When the core is made out of ___________, nuclear fusion can no longer fuel high mass stars and a supernova occurs.
Iron
When astronomers look at galaxies through spectroscopes, they see that the spectral lines are moved towards the ______ (red/blue) end of the spectrum, they are _____________ (red/blue) shifted.
red, red-shifted
Other than the atmosphere, what else protects the Earth from the Sun's solar flares and coronal mass ejections?
Magnetosphere
This section of the solar system is located between Mars and Jupiter
Asteroid Belt
Which planet rotates clockwise?
Venus
What does the tilting of the Northern hemisphere towards the sun give us?
Summer
An exploding star is called a _____________.
Supernova
Light that is moving away from you has a _____________ (longer/shorter) wavelength.
Longer
This is where nuclear fusion occurs.
The core
Why are dwarf planets not considered true planets?
They have not swept their orbits of smaller objects.
Which 2 planets are in the Sun's 'goldie locks zone'?
Earth and Mars
What does the full lunar cycle give us? (full moon to full moon)
28 days (1 month)
Stars are made from collapsing ____________________.
nebulae
Name two pieces of evidence that support the big bang theory.
Spectroscopes have shown that galaxies are moving away from each other - they are red-shifted
Cosmic Background radiation
This is the layer of the Sun that we see
Photosphere
Define the 3 characteristics that make planets planets.
Which planet contains a powerful magnetosphere and dihydrogen monoxide in all three physical states?
Eath
What do we get from the procession of the Earth, alternating its axis every 100 000 years or so...
Ice ages
What are three possibilities for the end of a star's life?
White Dwarf
Neutron Star
Black Hole
Define the big bang theory
The universe formed when an infinitely dense point suddenly and rapidly expanded in a single moment.