Light Revision Notes
When waves meet a boundary, where the medium (stuff) changes, they
may:
* reflect- bounce back e.g. light at a mirror, sound echoing off a
wall
* refract- go through the boundary, usually changing speed and
direction as they do e.g. light through spectacles, water waves
going from deep to shallow water
* get absorbed - give up their energy, warming up the surface layer
e.g. in a solar heater
Quite often, there's some of each happening.
High tier only
* When waves meet a gap, they carry on, but diffract - they spread
out into the shadow behind the gap.
* The extent of diffraction (spreading) depends on the width of the
gap.
1. a gap similar to the wavelength: a lot of spreading, no sharp
shadow e.g. sound through a doorway
2. a gap much larger than the wavelength: little spread, sharp shadow
e.g. light through a doorway
Reflection
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When waves reflect, they always do it regularly.
Remember:
i = r
(The angle of incidence = the angle of reflection)
Rough surfaces
Each bit of the surface obeys this law, but the overall effect of the
jagged surface is to scatter the light diffusely.
The reflected waves head off in all directions, e.g. sunlight on a
piece of paper.
Smooth surfaces
These act as mirrors. The rays are reflected uniformly and can form
images. They can:
1. be focused to a point e.g. sunlight off a concave mirror telescope
2. appear to come from a point behind the mirror e.g. a looking glass
Refraction
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If a surface is transparentto waves, some or most of the waves hitting
the surface will pass through. The rest get internally reflected.
The speed of waves usually changes when they cross a
wave to form, the surging tide must meet an obstacle. When the ocean meets the
“Its like everyone tells a story about themselves inside their own head. Always. All the time. That story makes you what you are. We build ourselves out of that story.” This quote is said by Patrick Rothfuss. In the book, True Notebooks, by Mark Salzman his students tell you many stories that people get to become apart of. Reading stories by other people makes their life more interesting. The power of storytelling is really important, because they have to catch your attention to make you want to hear more. Three stories from the book, True Notebooks, that suck out to me were: “The G Ride”, “Another Screw Up”, and a story without a title by Dale.
Recently, I have been writing quite a few essays and papers throughout my college experience. This entails, but not limited to, English, History, and Economics. My style of writing and methods have generally remained the same throughout the process. In this assignment, I will be discussing how I prepare to start a paper, what my thoughts are through the process, and my strengths and weaknesses of what my final drafts look like.
The yellow wallpaper and a rose for emily embody characteristics and experiences of women within a society that views of them in the time period women in the time period where discriminated against by society and made them feel worthless and depressed Likewise, the protagonist in both stories experience insanity, loneliness, feelings of being controlled, and finally, actions that show that each became completely out of control. However, the stories are as different as the authors themselves are. Charlotte Perkins Gilman, a feminist and social activist during the late 1800s when the subjugation of women was common often struggled with depression. this motivated , Charlotte Perkins Gilman to write The Yellow Wallpaper from the viewpoint of an oppressed female suffering depression while using A first-person perspective in such a way that provides the reader with an inside look at the mentally unstable point of view of the protagonist in the story.William Faulkner wrote A Rose for Emily, from the viewpoint of a member of a town while using A third-person perspective to show the characteristics of A southern town the town's people, and more specifically, one of the town's wealthy inhabitants Emily . though both stories have strong similarities in subject matter ' individual points of view resulted in two very different viewpoints concerning their surroundings and thus, two dramatically different themes But one strong underlying meanings in each of the stories. And that is oppression of Females in the 1800s
Cornell strategy note taking system, was developed by Dr Pauk of Cornell University, the Cornell strategy is an excellent study system for organizing and reviewing lecture notes to increase comprehension and critical thinking of course materials, which typically results in improved test scores.
Bagnato (1980) provides five suggestions for organizing test write-ups, which can be very beneficial for the individuals who are reading the report. These individuals typically include parents and teachers (Overton, 2015). The first suggestion that Bagnato provides is to organize “test results by domains or by developmental levels rather than by instruments” (Overton, 2015, p. 295). In other words, Bagnato is suggesting that write-ups be presented in a format that allows individuals to see how the student performed in each related category, rather than how the student did on a series of test. For example, reading comprehension and math would be looked at separately, which allows individuals to see where the student is weak and where the student
As this course in writing, for public administrators, comes to its conclusion, I have read provided materials, researched additional references and written various journal entries and analysis papers on topics that included writing skills and real world communications. The writing skill assignments provided the most interesting points but surprisingly, it was simple proof reading that proved the skill I need to spend more time mastering. This self-assessment will focus on the improvements I have made, points I have found interesting and the goals I have set to continue to improve my writing and communication skills.
Since this was our last literature based out-of-class essay for the semester, I had a hard time finding places in which to revise. When receiving Dr. Moe’s comments over the course, I not only applied his suggestions to each given paper, but used them as references for all my writings over the semester. Originally, I was not going to include the epigraph. However, I remembered how Dr. Moe often wanted us to clarify and command the essay from the very start of the work. Although my title gives the three topics in which I am discussing, I still felt that it was not enough for the depth of this paper. When looking online and I stumbled upon the quote by Whitman and I knew including it would be the that extra heft the title needed.
Writing papers has been one of my biggest fears as a student. High school English class prepared me for the editing of my essays, for example, grammatical errors, spelling, font errors, and things that were under the category of fixing my paper. I realized that the writing process requires more than just editing, you have to understand that the paper is like a human body, it cannot function if every single part is not effective. I can certainly say that I have improved as a writer a great deal and this portfolio and the final revised drafts of my work certainly can argue for that. English 101 was certainly different from my other English classes; we actually focused on different parts of the writing process in each class instead of wasting our time discussing the same components of the process over and over again. As I reflect on my experiences throughout the semester of English 101 I am aware that I have met very important requirements of writing that I feel were very valuable for me as a student and my writing has improved progressively.
When light comes in contact with the surface, it can be absorbed, reflected, transmitted or refracted. Type of light that is reflected from the surface determines our perception of color that surface in. Colorimeters and spectrophotometers is affected by absorption and transmission of light to measure the
Now in order to understand how lights is able to be refracted in different angles, it is important to understand the Snell’s Law which states that, the refractive angle always depend on the refractive index of both media. Now, the refractive index keeps on changing depending on the wavelength of the light passing through. Light, as we know, it is a wave that has different wavelength. Each wavelength represents a different color. Thus, different colors will have different refractive index when passed through the same media. It is important to note that light is normally refracted twice when it travels through a prism, first on its way in, and when it is going back.
When beginning to examine mirages, it is important to understand both what a mirage is and how it forms. According to physics.org, “mirages are naturally occurring optical illusions.” This illusion is caused by the way in which light is refracted through the air at different temperatures. Mirages exist in two different forms. There are both inferior and superior mirages. Both mirages are caused by refracted light, due to hot and cold air pockets existing above and below one another. Since cool air is denser than warm air, as light passes from cold to warm, it is refracted towards the denser air. The light rays, which usually travel straight to our eyes from the sky above, are bent almost in to what is a “u” shape. Our brain therefore perceives the fake image to be either above or below where the object actually exists. This process is what creates a mirage. An image is seen where it does not truly exist (Types of Mirages).
When I saw the news saying that after 15 years Leonardo DiCaprio was embarrassed about his performance in Titanic, I did not expect that I would feel the same way when I read the college application essay I wrote one year ago. Although I submitted the final draft because at that time I believed it was the best revision, now I can immediately point out a couple of mistakes and weaknesses. The essay did not have adequate details about what I did in a program about finance and money management, and therefore it was confusing. Moreover, it had many weaknesses such as rough transitions and grammatical mistakes. If I were the admissions officer, I would not accept the student who wrote such a piece of crap. Nonetheless, the process of retrospection not only shows my weaknesses in writing in the past, but also enables me to see my progress in writing over time. After taking two writing classes in college, I am able to apply techniques I learned from these classes to revise my essay to a better draft.
waves are further divided into two groups or bands such as very low frequency (