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Science S.1 Review
| Question | Answer |
|---|---|
| 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) |
| Do YOU KNOW SCIENTIFIC NOTATION? | YES (YOU BETTER) |
Created by:
Zacfan0501
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