Course Hero Logo

Pitch and as it defends further itd waves are altered

Course Hero uses AI to attempt to automatically extract content from documents to surface to you and others so you can study better, e.g., in search results, to enrich docs, and more. This preview shows page 43 - 47 out of 63 pages.

pitch and as it defends further, itd waves are altered and heard as low pitch. Ex: a moving fire truck with sirens,or a moving car with music.In the picture above, the sound waves closer to the right stick figure are compressed into a smaller distancecompared to the left side where the sound is in a way ‘stretched out’ to cover a longer amount of distance.
43Astronomy 1Ashley SanchezJune 10, 2018Assignment 14:Chapter 14 Summary:Telescopes are light gathering devices.The reason we need telescopes is because our eyes are small.Light only comes into our eyes through our pupils so we only capture a little bit of light. In order to collectmore light we need to collect it with a larger area than our pupils.There is 2 main telescope designs:Refracting: LensesThe primar lense collect light and the eyepiece makessure the light is suit for your eye to see it in a small hole.The eyepiece is also responsible for magnifying light.Pros:*Easy cleaning*No turbulence*Slightly Clearer image than reflectingCons:*All lenses act as light prisms and color will be blurry*Different color = Different foci*When light travels through the telescope it travelsthrough different mediums and is chromaticallydistorted.Reflecting: MirrorsIn a reflecting telescope, the mirrors are concave. These telescopes work by reflecting and focusing. Today,mirror telescopes aren’t used as often as refracting telescopes because it is hard to make, hard to maintain, andhard to buy. This telescope is very expensive. Reflecting mirrors are so hard to make, the biggest one is only102 centimeters wide.
44The Three Powers of a Telescope:1.Light gathering power:which depends on the area of the primary mirror (diameter). This depends on the area of the primarylens/mirror2. Resolution:1m and 2mdiameter telescope2m is 4 times better than 1mMath: divide by pie r^2 (area of the circle)3. Magnification: (don’t pay attention to this when looking for atelescope because you caneasily buy an eyepiece to improve it.)isequal to focal length of primary mirror over focal length of eyepiece*Telescopes can be improved by changing the focal length ofthe eyepiece*You cannot change the magnification in binocularsThe first number is magnification and the second is diameter
45Astronomy 1Ashley SanchezJuly 10 , 2018Assignment 15:Chapter 15 Summary:Terrestrial Planets: Are earth-like planets. AKA: Inner PlanetsCharacteristic examples include:*molten heavy metal core * few moons * topological featuresPlanets in our solar system that are Terrestrial Planets:*Mercury * Venus *Earth *MarsMercury:is almost dead and has no geological activity. Probably when earthcools down it will look like mercury. Mercury is very hot but only on one side.The surface of Mars has cracks on it because it is cooling down. This process issimilar to an apple becoming wrinkly when left out. 70% of mercury is made ofiron core and it has high density. Mercury has a magnetic field but it is veryweak, about 1/10000 of Earth’s Magnetic field.Venus: Has a thick atmosphere.Over 95 percent of venus’ atmosphere is

Upload your study docs or become a

Course Hero member to access this document

Upload your study docs or become a

Course Hero member to access this document

End of preview. Want to read all 63 pages?

Upload your study docs or become a

Course Hero member to access this document

Term
Spring
Professor
Dr. Mahbub Khan
Tags
Physics, Astronomy, Solar System, Space, Space Exploration, pH, Planet, Hubble Space Telescope

Newly uploaded documents

Show More

Newly uploaded documents

Show More

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture