Earth/Space Flashcards
The Big Bang theory says
Universe started from point and is still expanding
The Big Bang theory is an explanation of the start of the ____
Universe
A theory and a law are the same thing
False
Which is larger? Galaxy, planet, or universe?
Universe
Our solar system is part of what galaxy?
Milky Way
Light waves and sound waves are affected the same way when an object moves
True
If light is moving towards you it will show a ___ shift, moving away a ___ shift
Blue, red
The Doppler affect causes light to change ___ and sound to change ____
Color, pitch
When an object is not moving the waves
Stay the same size
A piece of evidence for the Big Bang theory is
Red shift of star light
The red shift of star light shows the universe is ____
Expanding
The first 3 states of a star lie in order are
Nebula, protostar, main sequences star
Our sun is currently in what stage?
Main sequence star
Which stage is fusing hydrogen into helium
Main sequence star
A constellation is what?
A group of stars that make an image in the sky