Review Questions Flashcards
Energy increases as you go up or down the rainbow?
Energy increases as you head towards violet
Stuff to know
Bohr Atom structure, kirchoff’s Laws, energy related to color, absorption spectrum, hw questions
What kind of spectrum is the sun’s spectrum? (Spectrum that reaches earth)
Absorption Spectrum
All objects that have a temp give off light. What type of light?
Infrared light, some give visible light as well
Hotter object give off higher or lower frequency colors?
lower frequency colors
Black Body radiation gives us the BLANK of stars
Color, hotter stars have higher frequencies
Is the star moving towards me or away based on the emission spectrum?
Shifted blue if towards, compressed waves, shifted red if moving away stretched waves
What waves can’t we see from earth?
gamma, x-ray, UV, infrared
Only waves to observe from earth
Radio waves and visible waves
Most important part of telescope
Objective Lens. More light = more info
Refraction telescope material
Glass
Reflection telescope material
Mirrors
3 Powers of Telescope
Magnification, Light-gathering power, resolving power
Reciprocal powers of a telescope
Resolving power impacts light-gathering and vice versa
Telescope is more powerful by how much
radius squared / radius squared
Be able to name two observatories for telescopes, probs don’t need specifics
Pros and Cons of Radio Telescopes
Name two radio telescopes
Interferometry
Connecting radio telescopes to make big dish
Sun spectrums
continuous spectrum - emission spectrum - absorption spectrum
How can we tell what a star is made of?
spectroscopy, absorbtion and emission spectrums
What is the most predominant gas in earth’s atmosphere
Nitrogen
Density of earth
5.52 g/cm^3
Analyzing light from a star we get
composition, velocity, temp
