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Science S.1 Review

What happens when you blow up the balloon with dots on it? they expand and increase in size
What happens to the dots as you let some air out of the balloon? Decrease in size (Contraction)
Name the three theories of creating the universe Oscillating Universe, Big Bang, and Steady State theory
Oscillating Universe Theory that explains how the universe was created with on/off cycle of expansion and compression
Big Bang present day theory explaining that the universe was created in one single point and exploded outward.
Steady State Theory explaining the universe began with no beginning or end and the universe doesn't change!
Heliocentric theory Copernicus thought universe revolved around the Sun
Geocentric Theory Aristotle thought universe revolved around the Earth
ROY G BIV red orange yellow green blue indigo violet
Electromagnetic waves Radio Microwave infrared visible light UV x-ray gamma
Which EM wave allows the rainbow to show through a prism? Visible light
Red Shift Increase in wavelength(Red side of spectrum/rainbow)
Blue Shift Decrease in in wavelength (blue side of spectrum/rainbow)
Shift Wave movement
High pitch higher frequency, shorter wavelength
Low pitch Lower frequency, longer wavelength
Wave energy Light/sound
Spectral/absorption lines dark lines that are unique to each element that makes up a star
Refraction Light is bent through a prism
Blue shift direction Coming toward us
Red shift direction going away from us
On a spectrum what would the wavelength of orange look like compared to violet? Larger wavelength
Red side of spectrum Large wavelength
Violet side of spectrum Small wavelength
Name three categories of galaxies Spiral Elliptical Irregular
How do you remember the three types of galaxies? I Enjoy Soup (I.E.S.)
Spiral Galaxies pinwheel/arms
Elliptical Galaxies flattened ball/no new stars can form(bright middle) *Most Common
Irregular Galaxies not elliptical/spiral *Rare
Analyze whether or not a siren coming toward us has a high frequency of waves. yes, it does. toward us = blue shift = short wave lengths = high frequency
Which shift does a meteor have coming toward Earth? Toward us = Blue shift
galaxy group of stars/gas/dust being held together by gravity
Light year Distance light travels per year 6trillion miles per year
Hubble's Law 1929 (Discovered further away galaxy is, the faster it travels)
Created by: Zacfan0501