Trolley Investigation
Choosing a Variable
Before I begin the investigation, I must first decide which variable I
should investigate.
Variables can be divided into 2 major groups: dependant variables and
independent variables. In measuring the behaviour of a trolley the
dependant variable is speed. This is because the speed will change
when other variables are changed.
An independent variable is a variable which cannot be affected by
other variables. There are many independent variables in measuring the
behaviour of a trolley and I must first assess which one would be a
suitable one to investigate:
* Shape of the trolley- the shape and aerodynamics of the trolley
can affect its motion behaviour. This is because the trolley is
affected by air resistance and certain shapes are more air
resistant than others. This would be a difficult variable to
investigate because we would be limited by the number of shapes we
could use. It would be difficult to plot the results in the form
of a line graph.
* Gradient of ramp- gradient of the ramp affects the motion of the
trolley because as the gradient gets larger the height the trolley
starts from gets higher as well. This would mean that at higher
points the trolley would have more gravitational potential energy.
This would be a good variable to investigate because we can use
various gradients but it might be slightly difficult to measure
some angles with the protractor.
* Height of start position- this affects the motion of the trolley
because as the height gets larger the trolley gains more
gravitational energy. This would be a good variable to investigate
because there are many heights we can use and it is also easy to
The basic design of a roller coaster consists of a train like coaster that starts out at the bottom of the tallest hill of the ride. The train is then pulled up the hill and is pulled to the top of the hill. As the train is pulled from the bottom of the hill to the top of it, the trains' potential energy is converted onto kinetic energy. Potential energy is defined as "the energy of an object at a height h above some zero level as equal to the work done by the force of gravity"2 (139). Kinetic energy is the energy of "an object . . . because of its motion"2 (132). As the distance between the ground and the train of cars increases, the potential energy of the train increases as well.
The United States of America is known for the equality that is provided, on the surface, however not every person is actually equal to another. In Two Scavengers in a Truck, Two Beautiful People in a Mercedes written by Lawrence Ferlinghetti, Ferlinghetti describes a scenario that seamlessly displays the differences between people in American societies. There are two scavengers which are garbage men that are on their way home, and two beautiful people, on their way to their architect’s office. The garbage men’s day ends but the young couple’s is only beginning. Ferlinghetti compares the two pairs in detail, then seems to ask at the end of the poem whether America really is a “democracy”. The comparisons show how the idea that the democracy of the U.S.A (United States of America) is believed that each and every person is to be equal, but under the surface that Ferlinghetti has provided the differences are easily discovered. The groups who are not of equal status perfectly show that the democracy that America takes pride in does not really fulfill the dream illustrated.
The founders of the pony express are William H. Russell, William B. Waddell, and Alexander Majors. It traveled from St.Joseph, Missouri to Sacramento, California. The route along the Pony Express began at the Platte River, next Fort Bridger, then to the Great Salt Lakes, and finally to Sierra Nevada. The route was a total of one hundred-ninety four miles.- They switched horses every ten- fifteen miles.With one hundred- ninety stations the Pony Express covered the rough terrain fastly.
Grief is an element of life that no one truly learns how to master, people just learn how to cope. However, in Tennessee Williams’ play, A Streetcar Named Desire, the Character Blanche has succumbed to grief, and has lost touch with reality. As the play progresses, you find out a key factor in Blanche’s awkward nature and you learn about the circumstances to her husband Allan’s death. It is discovered that she finds her husband in a homosexual relationship and she calls him disgusting. In the end of their relationship, they are dancing the Varsouvian polka, when he runs from the dance floor and commits suicide. From this point in her life, she begins a steady tumble into despair and mishaps. In “There Are Lives That Desire Does Not Sustain: A Streetcar Named Desire”, by Calvin Bedient, he explains how Blanche’s actions contradict her false appearances and are used to cover guilt. Contrasting this view, George Hovis, author of “‘Fifty Percent Illusion’: The Mask of the Southern Belle in Tennessee William’s A Streetcar Named Desire, The Glass Menagerie, and ‘Portrait of a Madonna’”, he suggests that Blanche uses her lies to protect herself from harm rather than to make her appear more elegant. The Varsouvian Polka is a central symbol that represents Blanche’s loss of touch with reality, brought on by the loss of her husband, and her dependency on men that triggered her downfall.
“Those who deny freedom to others, deserve it not for themselves” Abraham Lincoln, 16th President of the United States and credited for ending slavery for African Americans. On Friday, September 23rd, we set off for Cincinnati, Ohio. The goal of this trip was to view the Underground Railroad and Freedom Center and apply it to what we have studied in class so far. The mission of the Underground Railroad and Freedom Center is to “reveal stories of freedom’s heroes, from the era of the Underground Railroad to contemporary times, challenging and inspiring everyone to take courageous steps of freedom today.” The Center had many exhibits to view and all were impactful in different ways, however I will discuss the three that had the most effect on
“The Hitchhiker,” by Lucille Fletcher, narrates the unusual happenings Ronald Adams, the protagonist, experiences, while driving along the deserted and densely populated roads of the United States. Adams continually observes a hitchhiker, whom he first saw, having almost hit him, on the Brooklyn Bridge, and apprehends traveling on the highways, for fear this phantasmal man shall reappear. Struggling to grasp reality once receiving news of his mother’s breakdown after the death of her son, Ronald Adams, he reverts his attention to the hitchhiker, the realization of never having been who he thought he was, and being alone without protection from the traveler, both wrench his mind in two. Lucille Fletcher uses suspense to build the plot of, “The
The Underground Railroad is famous for the things it has done, but most people don't understand or fully know what it was really about. First of all, it has nothing to do with an underground train or railroad as it may seem. The term "Underground Railroad" actually has different stories for its inception. One of these stories was of Tice Davis, a runaway slave in 1831. While running away from his owner he dove into a creek and was out of the owner's sight. His owner said "he must have gone off on an underground railroad." (http://www.whispersofangels.com/opposing.html) Although highly unbelievable, it can be found quite amusing. The logical explanation, though, is that the word "underground" is a term for secretive, while "railroad" represents the working together of people like train cars to "ship" the slaves. The main reason for the Underground Railroad was the effort to abolish slavery. None of the other efforts were contributing as much, and it was definitely our country's first major anti-slavery movement.
"Do you think me, because I am poor, obscure, plain and little, I am soulless and heartless?" (Bronte). In this Charlotte Bronte quote you can see that social class is a determining factor in a person's view towards another. The rich look down at the poor as obscure and worthless due to their social class. This is evident in the world famous play A Streetcar Named Desire by Tennessee Williams through the colliding personalities between the main characters Stanley Kowalski and Blanche Dubois. The critical lens of Marxism can be applied to the play due to the tensions between the rich and the poor, the downfall of the old south, and different views/changes in the southern economic system.
The Underground Railroad despite occurring centuries ago continues to be an “enduring and popular thread in the fabric of America’s national historical memory” as Bright puts it. Throughout history, thousands of slaves managed to escape the clutches of slavery by using a system meant to liberate. In Colson Whitehead’s novel, The Underground Railroad, he manages to blend slave narrative and history creating a book that goes beyond literary or historical fiction. Whitehead based his book off a question, “what if the Underground Railroad was a real railroad?” The story follows two runaway slaves, Cora and Caesar, who are pursued by the relentless slave catcher Ridgeway. Their journey on the railroad takes them to new and unfamiliar locations,
A journey of hundreds of miles lies before you, through swamp, forest and mountain pass. Your supplies are meager, only what can be comfortably carried so as not to slow your progress to the Promised Land – Canada. The stars and coded messages for guidance, you set out through the night, the path illuminated by the intermittent flash of lightning. Without a map and no real knowledge of the surrounding area, your mind races before you and behind you all at once. Was that the barking of the slavecatchers’ dogs behind you or just the pounding rain and thunder? Does each step bring you closer to freedom or failure?
The file labeled “Newton’s 2nd Law” is to be opened. The cart’s mass along with the attachment of the sensor and the accelerometer are to be measured and recorded. Being carefully verified in order, the track is leveled and the Force Sensor is set to 10N and connected to...
Ride Home Imagine you're on a train to a place you don't know, with hundreds of other children riding with you. At the next stop you get off and hundreds of adults surround you. You hear them talking and mumbling, but you cannot understand what they are saying. Point at you and grab your arms to see your muscles.
Starting in the 1850s, there were great increases in urbanization. Movements such as The Great Migration lead to huge populations in newly industrialized cities. In addition, there was a great increase in immigration, especially from families of eastern and southern European descent. The Orphan Train Movement’s purpose was to give the thousands of children in New York City that were left without homes due to increased urbanization and industrialization a new family out west with good living conditions and values and to increase the number of farm workers. The children mostly were placed with good families, but some children were treated as slaved by their families. Additionally, most of the children were excited to work; however, some were inept at doing farm work and were more detrimental than helpful to their new family.
Cross-culturally there are many difference between moral values. The extremes of these moral differences include cannibalism or incest which were normal in some cultures, closer to home there are value differences between liberals and conservatives or between the South and the West, any two cultures will have different ideas of moral values. There are three potential sources to base moral values on, faith, emotion, or reason. Individuals all have different ideas about what is moral and they conflict with one another. If morals were based solely reason everyone would eventually reach the same moral ground. If they could be based only on reason, it would mean universal morals. However, based on how we determine our morals now, where
Rail transportation is a transportation in which for movement of people and goods which from one location to another destination. Rail had been takes the important role in physical and economic development of town and cities in a country and it was developed over the world. Rail transport can be made a property value in a country increase and it must be needs improvement in transportation network expanding (Goldberg, 1970). Thus, the railway services need to be done with continuous improvement and it is important to the rail passengers of the range and quality of facilities and service on stations and trains (Gleave, S. D., 2000). The future development to a public transportation is a key to affect