Who was the astronomer that came up with the Doppler Shift?
Edwin Hubble
200
How is an ellipse different from a circle?
circle has eccentricity of zero...ellipse doesn't. Variety of answers
200
What life stage of a star is the Main Sequence?
young, baby, etc.
200
Who comes into the room uninvited and is creepy? (no, not Brian Helfman)
Lizzy Borden
300
What are the 2 categories of the planets?
Terrestrial and Jovian
300
When the spectral lines move towards the blue, what is the object doing?
Moving towards the observer
300
Explain the 3rd law of planetary motion
A planet close to the Sun with have a shorter orbit than a planet farther away
300
What is the relationship between mass and luminosity for stars on the Main Sequence?
as mass increases, so does luminosity. Direct relationship
300
What grade did Mrs. Burns pee her pants in?
2nd
400
Name 2 ways Earth differs from Jupiter.
variety of answers (teacher makes final call)
400
When a star dies, what is the event called?
a supernova
400
Explain the 2nd law of planetary motion
an imaginary line joining a planet and the Sun will sweep over equal areas in equal periods of time
400
What does it mean when a start is off the Main Sequence?
old, dieing, out of gas, etc.
400
If we don't know an answer, what do we do?
Google it! (or ask Siri)
500
Explain why an Earth day is 24 hours and not 23 hours, 56 minutes, and 4 seconds
23hr56min4sec is how long it rotates once. But, it also is revolving around the Sun. So, in order for the same location to be facing the Sun again, it takes a few minutes longer (due to the revolution)
500
Explain nuclear fusion....yes, again!
Hydrogen fuses to become Helium (which is heavier) and the energy is released as light.
500
Distinguish between perihelion and aphelion
Perihelion is when the Earth is closer to the Sun and orbits faster. Aphelion is way from the Sun and slower
500
About how hot is the Sun?
6,000 degrees Kelvin
500
There has been a poster over the back door of the classroom all year, what does it say?