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Convex lens theory
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Observation – Magnifying glasses are normally made of convex lenses. A convex lens is thin on the outer edges and are thicker in the center. They bend light inwards towards a focal point. They can be used to make objects appear larger than they actually are. This is accomplished by placing the lens close to the object or item. In this way, the light rays are bent towards the center of the lens creating a focal point. When the bent rays hit the retina, it will make the object appear larger than it actually is. The distance the lens are from the surface of the item or object affects the size of the focal point. The focal point of the lens are also determined by the curvature of the lens too. Many people have used a magnifying glass and sunlight …show more content…
According to this graph, the color of paper that took the least amount of time to create a hole is the black colored paper whilst the color of paper that took the longest time to create a hole is the red colored paper. Based on the graph, it is clear that each of the colors are tested five times. From what can be seen from this graph, there are no trials that go above a minute. The range that has the most trials in it is around the 17 to 20 second range because there are two 17 seconds, three 18 seconds, one 19 seconds, and one 20 seconds. The graph shows that the shortest amount of time it takes to create a hole is 5 seconds for the black colored piece of paper whilst the longest amount of time it takes to create a hole is 23 seconds for the red colored piece of paper. There is an 18 second difference between the shortest time and the longest time which is the black paper and the red paper. The mean was 8 seconds for the black piece of paper, 19 seconds for the red piece of paper, and 15 seconds for the blue piece of paper. This shows that the black colored paper is the fastest and the red takes the longest, and blue is somewhere along the middle between red and black. However, the red and blue colored pieces of paper were fairly close in terms of seconds, so blue isn’t that much less than …show more content…
The data that was collected supports the hypothesis because in the hypothesis, it was stated that the black colored piece of paper would create a hole faster than the red or blue pieces of paper. This is because the black colored piece of paper absorb all wavelengths of light whilst the red and blue pieces of paper reflect off one wavelength of light. The data collected supports this because based on the graph and analysis, the range that has the most trials in it is around the 17 to 20 second range, and the trials in that range are the red and blue pieces of paper because they both reflect off one wavelength of light, therefore they both take around the same time to create a hole. The data also shows that the black piece of paper takes the shortest amount of time to create a hole because the shortest amount of time is at 5 seconds and the longest amount of time is 12 seconds, which are both shorter than the other two colors of paper’s trials. Using the graph, it is also clear that the black colored piece of paper absorbs energy the fastest because the grey bars are the mean, and the black colored piece of paper was at 8 seconds whilst red and blue are 19 and 15 seconds, meaning that the black colored piece of paper absorbed energy the most effectively. This shows that the data that was collected supports the
For this book response, I chose to read the volume titled Nickel and Dimed by Barbara Ehrenreich. In short, this book is about a woman who decides to take on living the life as a poor woman in which she would write about those experiences after. Her primary goal was to see whether she could match expenses to income just as the poor do every day. Throughout this book, she travels to various different cities in which she finds jobs that the regular poor would take on. Additionally, she lives off just the money she earns from the jobs that she takes and not the money she has accumulated throughout her years. As a result of this book, she is trying to make everyone realize that this is America and people go through this every single day.
Erik Erikson was heavily influenced by Freud but while Freud was an ID psychologist, Erikson was an ego psychologist. Erikson stressed that the development of the ego depended heavily on personal and social aspects. “According to Erikson, the ego develops as it successfully resolves crises that are distinctly social in nature. These involve establishing a sense of trust in others, developing a sense of identity in society, and helping the next generation prepare for the future” (McLeod, S. 1970). His theory focused on personality development through eight distinct stages. He believed that personality progressed in a stacking or pre-determined manner, this is referred to as the epigenetic principle. One must
... has more CO2 than the negative controls. There will be more spinach circles in the red food coloring than the green and blue food coloring. My hypothesis was supported for both experiments.
In figure 2, the class mean calculated was 147.8kJ. The difference between the two measurements is 2,122.2kJ. This shows how low the accuracy for this experiment was. The macadamia nuts had a true energy value of 3040kJ per 100g. Looking back at figure 2, the class mean calculated was 224.4kJ which leaves a difference of 2,815.6kJ. Once again, a low accuracy. Lastly, the popcorn had a true energy value of 1910kJ. The class mean equalled to 144.1kJ. The difference between the class mean and the true value is 1,765.9kJ which shows this experiment being low in
Poverty can be a choice or a last resort for many across the globe. The Glass Castle a memoir written by Jeannette Walls, portrays how her family rejected civilization and embraced poverty. I felt Rex Wall’s notion of “sink or swim” (Page 66) portrays the failure and success of having a family. The situation in the Wall’s hopes manifested itself as a Glass Castle, a mysterious glass house the family would hope to build and live in. In order for the family’s dream to succeed, they would have to face many demons on the way. Throughout the book, I protested against some of the choices that were made, but I soon came to an understanding that some people will not change the way they live. I kept on thinking there always a possibility that there is always a cure to a problem, but sometimes there is too little time or understanding on both sides. A common theme that kept on going
My views about Ehrenreich’s novel that it was filled with educational details of minimum wage job occurrences. The author captures concrete memories of her experiences of several job positions. Working in several jobs of hard manual labor is exhausting for the mind and body. The job experiments involving all these jobs to see what many struggling people endure on a daily basis. I thought the experiments resulted in average, and intolerable work environments. Working one or two jobs was needed to survive and pay for necessities. From my perspective, it was a useful trial to show readers the hardships people of every culture deal with constantly.
This reflective essay will demonstrate the concept of reflection. The model of reflection by Driscoll, 2007 has been followed in this essay to reflect the clinical skills that I have studied and practiced in week 7to week 9 of this unit which assisted me to get prepared for the practical experience which I will commence at the end of this semester. I have practiced numerous skills during the practicals class, but this essay will be a focus on taking care of bedsore and wound management.
Goal 2- Garner experience and practice in treatment planning and assessments through performing psychosocial and diagnostic assessments; consider methods of interventions appropriate to client presentation; develop treatment plans with supervisor for assigned clients.
One of the experiments on trip was to test how fast the water was moving. Our group stood in nine different locations and did the testing. My hypothesis was if the water is deeper, then the water velocity will be faster. After the group did that, the group collaborated results, giving people the other answers so they can fill in their data sheet. Now the results will vary depending on what group you are in, and it can vary from all of us walking in and around the creek. As you can see on the left is the graph of all the data. The scatter plot indicates that my hypothesis is incorrect because if you look at it as the depth gets deeper, than the speed or velocity of the water goes down.
The research our experiment was founded on was that carried out by Taylor and Faust (1952). They carried out an experiment on 105 student’s, which was designed in the method of the game ‘twenty questions’. The students were split into teams of one member, two members and four members. They were then told that the experimenter would keep an object in mind whether it is animal vegetable or mineral was also stated, and they were then allowed 20 questions and guesses to reveal the identity of the object. In there experiment they found that the group of two members performed better than the group of four members in terms of how many guesses and questions it took them and how long it took them to deduce the identity of the object. However Taylor and Faust found that the efficiency did not differ in any significant way.
Limitations of Experimental Design- My experimental design helped answer the original question adequately. Since the syringes were small, wrapping them in colored film was relatively simple and took little time to do. Using colored film was also more effective than using colored bulbs, the original plan. Colored bulbs would have ...
The refracting telescope is one of many different types of telescope. Refracting telescopes work by refracting the light through an initial convex lens, (known as the objective lens), then through another convex lens (known as the eyepiece lens). These two lenses focus the light into the eyepiece so we can see the image clearly.
In this “Digital Age” that we currently live in, it becomes very easy for an individual to become infatuated with the amount of social media outlets available on the internet. Platforms like Facebook, Twitter, Instagram, and Snapchat all revolve around the idea of showcasing one’s personal life for the sake of receiving positive feedback or attention by peers and strangers from the outside world. An episode of the Netflix sci-fi anthology series, “Black Mirror,” decides to tackle this topic in a surreal yet imaginative way. The episode in particular, “Nosedive,” investigates a hypothetical future or alternate universe where social media profiles and star ratings have become the norm. The plot revolves around a young lady named Lacie, who
This lesson is designed to review and reinforce a few important concepts about plants (e.g. Needs, parts, sequence of planting) and to also guide the students through applying a few scientific inquiry (e.g. Making observations, experimentation, discussion, reflection, reporting results etc.). The students have previously planted corn and bean seeds and today’s lesson has provided the students a chance to see the results of the planted corn and bean seeds. Additionally, seeds have been planted under and growing under the following conditions: without water, and without soil. The students see the results of these seeds planted under these conditions for the past week. Two plants in particular have already been grown their growth has been
I will fund my exhibit through donations and sales. I would reach out to the community, explain my exhibit and ask for donations, but I would primarily generate revenue through selling items related to the exhibit like prints of the works being shown, creative posters, key chains, t-shirts and other mementos. Additionally, I would have bake sales and fairs and other activities of a similar nature.