Vocabulary
A system of billions of stars, gas, and dust held together by gravity is known as what?
Galaxy
Our sun is a low mass, Main Sequence star. What kind of star will our sun be next?
Red Giant
The Milky Way, where we live, is what type of galaxy; spiral, elliptical, or irregular?
Spiral
Which direction does blue shift move?
Towards the observer
What are the three parts of an atom?
Proton, Electron, Neutron
What is the distance from any point on a wave to the corresponding point on the next wave?
Wavelength
List the five colors of the stars from coldest to hottest.
Red, orange, yellow, white, and blue
Where do protostars (young stars) form?
In a nebula
What is the only part of the Electromagnetic Spectrum that the human eye can see?
Visible Light
What is the rounded atomic mass of Sodium?
23 amu
Luminosity is also known as ___________________ and is determined by a star's ________________.
brightness; size
Which type of stars have a temperature of 3,500K and a luminosity of 2.1 x 102?
Red Giants
What unbalanced force keeps the Earth revolving around the Sun?
Gravity
What are the tops and bottoms of waves called?
Crests and troughs
How many total atoms are in the following chemical formula?
CH3C4H8COCH3
22 total atoms
What is a giant explosion in which a massive star collapses and throws its outer layers into space?
Supernova
What can be formed at the end of a high mass star's life when the star's core collapses on itself?
Black Hole
What is a spherical body that orbits the sun?
Planet
What do the wavelengths of red shift waves look like?
Stretched/wavelength increases
How many hydrogen atoms are in the following chemical formula?
5(NH4)2O
40 hydrogen atoms
What is a small chunk of ice, dust, and rocky material that forms a glowing tail of gas and dust when it passes near the Sun's orbit?
Comet
Describe the difference between White Dwarfs and Red Supergiants.
White Dwarfs are hotter and dimmer than Red Supergiants.
Put the following items in order from smallest mass to greatest mass:
galaxy, planet, star, comet
comet, planet, star, galaxy
What type of waves are emitted with a frequency of 3.7 x 109? Use your diagram!
Microwaves
A teacher rubbed a match against a piece of sandpaper. The match started to burn. What is the energy transformation that occurred?
Chemical energy to thermal energy to light energy