Galaxies
What a galaxy cluster contains
What are many individual galaxies?
The two ways to measure distances in space
What are AU's and Light Years?
What causes a protostar to form
Gas and dust (nebula) attracted by gravity collapses and forms a protostar (baby star)
The three limits of models
What are scale, looks, and info?
EM WAVES that show us what is hidden by dust
Infared and Radio
How many solar systems there are in a galaxy
What are 100 billion solar systems?
What an AU stands for, how long it is (distance from what to what) and when it is used
Astronomical Unit, Distance from Sun to Earth, Measures distances in our solar system
List the life cycle stages of a large main sequence star in order
What are red supergiant, supernova, neutron star/black hole?
List the hottest star color to coolest star color in order.
What are blue, white, yellow, orange, red?
Define frequency.
What is the number of waves that pass a given point in a certain amount of time?
What is the force of attraction that keeps the stars orbiting around the galaxy's center?
What is Gravity
Define light year and tell me what it is used to measure
What is the distance light travels in one year, and used to measure the farthest away objects in space?
List the life stages in order of a small/medium main sequence star
What are red giant, planetary nebula, white dwarf?
The "nesting doll" analogy (describe it and what it has)
What is when the universe holds components like a nesting doll including universe holding galaxy cluster holding galaxy holding solar system holding planet?
EM wave that shows us the temperature differences of an object
Infared
The four components a galaxy contains
What are solar systems, stars, gas, dust?
The number of Au's from the Sun to Pluto
What is 39 AU's?
Describe the size of a neutron star
What is tiny and dense compared to an "adult" or "stable" main sequence star
What star color tells us (describe)
What is the temperature and possibly the stage of life of the star?
List the EM Waves from large wavelength/low frequency to small wavelength/high frequency.
What are radio waves, microwaves, infared, visible light, ultraviolet, x-rays, and gamma rays?
List the galaxies classified by Hubble's galaxy classification system and which is NOT
What are spiral, barred spiral, and elliptical? What is irregulars?
The EM wave that detects the most energetic events in the universe
Gamma Rays
Gravity's role in star formation (be specific)
What is gravity is the force that pulls together the gas and dust inside a stellar nebula, forming a protostar?
The three PHYSICAL properties of a star and what each means
What are mass (size), luminosity (brightness), and surface temperature (color in Kelvins)?
EM WAVES that help us learn about hot matter and events as well as energetic stars
Ultraviolet and X-rays