Light & Waves
The Sun
Stellar Classification & Formation
Stellar Evolution
Neutron Stars & Black Holes
100
This is defined as the number of waves that pass by an observer every second.
What is frequency?
100
These features on the Sun's surface indicates regions of relatively low temperatures.
What are sunspots?
100
This is the name given to the region of the H-R Diagram where stars spend most of their lives.
What is the main sequence?
100
This is the next stage our Sun will go through as it leaves the main sequence.
What is a red giant?
100
A neutron star is the mass of the Sun compressed into this volume.
What is the Earth?
200
This type of wave cannot travel through space.
What is sound?
200
These features on the Sun's surface indicate convection cells where hot material is rising and cooler material is sinking.
What are granules?
200
These are the relation percentages of hydrogen & helium in the interstellar medium.
What is ~90% and ~9%?
200
These are the only two possible end products of a Type 2 supernova.
What are neutron stars & black holes?
200
This is how small the Earth would have to be shrunk to before it became a black hole.
What is 1 cm?
300
This type of EM radiation has the shortest wavelength.
What is gamma radiation?
300
This form of solar activity is associated with breaking magnetic field lines, and the loss of charged particles into space.
What are solar prominences?
300
This is the region of the H-R Diagram where a protostar first appears (although it isn't really this type of star yet).
Where is the upper right hand corner, aka red giant region?
300
This is the name given to the theoretical final stage in a low mass star's life.
What is black dwarf?
300
This is the name given to the theoretical "surface" of a black hole.
What is the event horizon?
400
The doppler shift of a wave moving toward you is called this.
What is blueshifted?
400
This is the layer of the solar atmosphere that is the origin of the solar wind and this is how hot it is.
What is the corona, and ~10,000,000 K?
400
This is the defining event in a protostar becoming a "real" star and it occurs at this temperature.
What is a fusion reaction at ~10,000,000 K?
400
This is the name and mass of the limit a white dwarf can reach before undergoing a Type 1a supernova.
What is the Chandresekhar Limit of 1.4 solar masses?
400
This is why all pulsars are neutron stars, but not vice versa.
What is because not all pulsars are pointed toward us?
500
These TWO types of EM radiation can pass completely through the Earth's atmosphere.
What is radio & visible?
500
Light from the Sun can each Earth in this much time, but physical material in the solar wind takes this much time to reach Earth.
What is 8 minutes and ~3 days?
500
This is how far a star with an apparent magnitude of +8 and an absolute magnitude of +5 must be from Earth (relative to 10 parsecs).
What is greater than 10 parsecs?
500
This is the name given to the explosion resulting from a collision of neutron stars.
What is a hypernova?
500
This is the term coined to describe what would happen a person who fell into a black hole.
What is spaghettification?
M
e
n
u