HR Diagram
The variable on the X axis of the HR diagram...
Surface Temperature (or) Color
The element that fuses into Helium inside of a main sequence star
Hydrogen
All orbits in the Universe are this shape
Ellipse (oval)
What our Universe has been doing ever since the "Big Bang"
Expanding
These types of stars live the longest
Small Mass stars
___________ increases as the mass of a star increases (Y-axis)...
Luminosity (Brightness)
The layer of a star where Nuclear Fusion occurs...
Core
A planet moves (faster/slower) when it is closer to the Sun?
Faster
The main evidence that supports the expansion of our Universe
Redshift of light from Galaxies
Jovian (gas) planets are more dense or less dense than Terrestrial (rocky) planets?
Less Dense (because they are made of Gas)
The approximate temperature and color of our Sun
6,000 K (yellow)
Darker/Cooler surfaces on the Sun with a concentrated magnetic field...
Sunspots
The ___________ away a planet is from the Sun, the longer it takes to make one complete orbit (period of revolution).
Farther
Galaxies that are further away are moving ____________ compared to galaxies that are closer.
Faster
Temperature __________ after the Universe began expanding.
Decreased (got cooler)
When the Sun becomes a Red Giant someday, describe the relative change in it's temperature and brightness...
Decrease in Temperature
Increase in Brightness
The time it takes for our Sun to complete ONE solar cycle
10-11 years
An object is in a stable orbit in between Mercury and Venus. How will its orbital speed compare to Mercury?
Slower
Galaxy A: 100 Million Light Years away
Galaxy B: 2 Billion Light Years away
Which of these two galaxies is receding faster?
Galaxy B
Hydrogen and Helium
Magnitude decreases as stars become larger. How will the magnitude of a Main Sequence star change when it becomes a Red Giant?
Decrease
Radiation
This factor is what determines the orbital period of a planet (time it takes to make one complete trip around the Sun)...
Distance to the Sun
The word used to describe a change in velocity... The expansion of our Universe is ____________ because galaxies very far away are travelling faster than closer galaxies...
Accelerating
What should you bring with you tomorrow for the Benchmark CHARGED AND READY TO USE??!?!?!?!?!?!?!!?!?!?!?!?!?!?!?!?!?!?! agghagh
Computer