Investigation to find out whether changing Essay Example for Free

Investigation to find out whether changing Essay Air resistance is a force that acts upon any object falling through the air. It slows the rate of descent on an object with any surface area. Scientific research has found that by altering the objects surface area, the amount of air resistance either increases or decreases, changing the rate of descent. Newtons third law states that for every action there is an equal and opposite reaction. My helicopter will fall to the ground because of the gravitational pull of the Earth. In reflection to Newtons law, the opposite force in the case of my experiment will be air resistance. As gravity is pulling my helicopter to the ground, air resistance is pushing up onto my helicopter, slowing its rate of descent. The rate of gravity is always the same, as the gravitational pull from the Earth is the same, so the factor in this case, which affects the rate of descent, is air resistance. Newtons second law of motion states that the acceleration an object experiences multiplied by the mass of the object is equal to the net force acting on the object. Thus, if a given force acts on two objects of different mass, the object with the larger mass will have a lower acceleration. In the case of my experiment, the rate of descent on my helicopter, multiplied by the mass of my helicopter is equal to the total amount of forces acting on it. If the forces acting on my helicopter give a net force which is zero, then my helicopter will not accelerate, it will continue moving at a constant velocity. The forces on an object falling at terminal velocity are balanced. Terminal velocity occurs when the weight of an object is balanced by the drag. Drag depends on the speed of an object- the faster it moves the greater the drag. Therefore, if one of my helicopters is moving faster than another, then it will create more air resistance. Drag also depends on the shape of an object. A streamlined object will travel much faster than another object, and they have a lower terminal velocity. We call the force of gravity on something its weight. Weight (N) = mass (kg) x gravitational field strength (N/kg) The gravitational field strength on Earth is around 10N/kg. Astronauts on the moon tried an experiment suggested by Galileo. They dropped a feather and a hammer at the same time, and they landed together. Newton also tried this experiment, dropping a coin and a feather first in air, then in a vacuum. In the air the coin landed first, but in a vacuum, they landed at the same time. The feather and the coin have a similar surface area, so when they begin to fall they should have about the same amount of drag. As they fall the air resistance on the feather soon increases to balance its weight, causing it to travel at terminal velocity. The coin, on the other hand, is heavier, so it continues to accelerate, and probably hits the ground before reaching terminal velocity. The drag force (air resistance) is always in the opposite direction to the motion. The force of gravity is equal and opposite to the drag force. I predict that by altering the surface area of the wings on my helicopter, I will be able to change the rate of descent by increasing and decreasing the air resistance of the wings. I think that if I increase the surface area of the wings, the amount of air resistance will increase, and my helicopter will take longer to reach the floor. If I decrease the surface area, there will be less air resistance, so my helicopter will travel faster. I also think that whilst doing my experiment, I may find the terminal velocity of one of my helicopters. Method: Make a helicopter out of a piece of paper. Make the wings 11cm x 3cm each, and the base 10cm x 3cm, leaving a 1. 5cm gap from the edges of the wings, like the one shown here. Fold one wing forwards, and the other backwards along the dotted line. Measure a height of 2m from the floor. Make a mark on the wall so that you know where to drop your helicopters from. Stand so that the first helicopter is level with the mark on the wall, and get another person to stand on the floor with a stop clock. Let go of the helicopter and time how long it takes to hit the floor. Record your results in a table. Repeat with the same sized helicopter 3 times, and then cut 1cm off the length of the wings. Repeat the experiment until the wings are 1cm long. To keep my experiment fair- I will use the same helicopter throughout my experiment to ensure accurate results. I will also mark a point on the wall so that I can drop my helicopters from the same height every time. Results: Analysis: My results dont show a linear pattern, the average times go down in steps, but this may have been caused by experimental errors. More of my average times are above my line of best fit than on or below it. Evaluation: I think that my experiment was fairly successful, as from my results I can see that my prediction is usually correct- reducing the surface area of the wings decreases the time it takes to get to the floor, because of the reduce in air resistance. If I was to do this experiment again, I would make another helicopter in a different way, because I think that that my results may have been in a more linear fashion if the helicopter spun more in the air.

A Traveler Is Resolute And Independent :: essays research papers

Tenets of Wordsworth in Resolution and Independence   Ã‚  Ã‚  Ã‚  Ã‚  Romanticism officially began in 1798, when William Wordsworth and Samuel Taylor Coleridge anonymously published Lyrical Ballads. This work marked the official beginning of a literary period which had already begun many years before 1798. A work is defined to be of a certain period by its characteristics, therefore to be considered a Romantic work, the work must contain aspects which are termed â€Å"Romantic.† A few typical â€Å"Romantic† aspects are: love of the past; sympathy to the child’s mind; faith in the inner goodness of man; aspects of nature having religious, mystic, and symbolic significance; and reconciliation of contrasting ideas to make a point. Wordsworth flourished in these ideas in a poem called Independence and Resolution. In this poem Wordsworth shows the reader what he thinks his life is like and what he wants it to be like.   Ã‚  Ã‚  Ã‚  Ã‚  In its essence, Resolution and Independence is an open book to what Wordsworth feels his life is like. It is about the past, present, and future Wordsworth. Wordsworth feels that his life is like a â€Å"traveler† on the moors (15). He feels that in the past he has always been like a small â€Å"boy,† who never â€Å"heard† or â€Å"saw† the beauties of nature (18). As a child, Wordsworth never understood life, because he never looked to nature for inspiration or guidance. Presently, Wordsworth feels he that he is â€Å"a happy Child of earth,† because he walks â€Å"far from the world. . . far from all care† (31, 33). He begins a search to find a way to live in harmony with himself, God, and nature. During his search, he finds an old man, the leech-gatherer, who is one with himself, God, and nature. Upon seeing this man, Wordsworth is immediately amazed by the mien of this old man. Wordsworth admires this man’s insight on life, that Wordsworth decides that he wants to become the same way. Thus, in Wordsworth’s search for his place in eternity in nature, he finds an example that he wants to duplicate.   Ã‚  Ã‚  Ã‚  Ã‚  Resolution and Independence includes many tenets of Romanticism including a love of the past. Wordsworth loves the storm of the previous night and the â€Å"rain-drops† on the moors that it leaves behind (10). Wordsworth loves the old man, because the old man has so much knowledge from his past experiences. The poet enjoys reminiscing on past experiences:   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  I was a Traveler then upon the moor A Traveler Is Resolute And Independent :: essays research papers Tenets of Wordsworth in Resolution and Independence   Ã‚  Ã‚  Ã‚  Ã‚  Romanticism officially began in 1798, when William Wordsworth and Samuel Taylor Coleridge anonymously published Lyrical Ballads. This work marked the official beginning of a literary period which had already begun many years before 1798. A work is defined to be of a certain period by its characteristics, therefore to be considered a Romantic work, the work must contain aspects which are termed â€Å"Romantic.† A few typical â€Å"Romantic† aspects are: love of the past; sympathy to the child’s mind; faith in the inner goodness of man; aspects of nature having religious, mystic, and symbolic significance; and reconciliation of contrasting ideas to make a point. Wordsworth flourished in these ideas in a poem called Independence and Resolution. In this poem Wordsworth shows the reader what he thinks his life is like and what he wants it to be like.   Ã‚  Ã‚  Ã‚  Ã‚  In its essence, Resolution and Independence is an open book to what Wordsworth feels his life is like. It is about the past, present, and future Wordsworth. Wordsworth feels that his life is like a â€Å"traveler† on the moors (15). He feels that in the past he has always been like a small â€Å"boy,† who never â€Å"heard† or â€Å"saw† the beauties of nature (18). As a child, Wordsworth never understood life, because he never looked to nature for inspiration or guidance. Presently, Wordsworth feels he that he is â€Å"a happy Child of earth,† because he walks â€Å"far from the world. . . far from all care† (31, 33). He begins a search to find a way to live in harmony with himself, God, and nature. During his search, he finds an old man, the leech-gatherer, who is one with himself, God, and nature. Upon seeing this man, Wordsworth is immediately amazed by the mien of this old man. Wordsworth admires this man’s insight on life, that Wordsworth decides that he wants to become the same way. Thus, in Wordsworth’s search for his place in eternity in nature, he finds an example that he wants to duplicate.   Ã‚  Ã‚  Ã‚  Ã‚  Resolution and Independence includes many tenets of Romanticism including a love of the past. Wordsworth loves the storm of the previous night and the â€Å"rain-drops† on the moors that it leaves behind (10). Wordsworth loves the old man, because the old man has so much knowledge from his past experiences. The poet enjoys reminiscing on past experiences:   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  I was a Traveler then upon the moor

A Monologue for Love Essay

What becomes of the broken hearted? Nothing. You think you know love — then that love turns out to be an egotistical self-involved bastard who’s no braver than the house mouse living in your walls waiting ’til you least expect it. I’ve made mistakes before. But nothing compares to the ones made with him. The ones made in his arms, his unloving false arms’ embrace that somehow once made me feel warm and made heart be tender. And in that false embrace I made mistakes under false illusions. Illusions that this.. boy, this child, could love me and make me feel like a woman! A woman I am not, I am but a child, a girl who has been broken by the same boy too many times and more. I tried to end it once, twice, and ended it be on the fifth. But this was all too little too late, as he had touched me and I him. And is it so much to ask that I be loved again? It must have been for once another man loved me — A man this time. Not a child, a boy. A man. And this man I turned down. I gave him false reason. For the real reason was that I did wish to be with this man — but I was too afraid. The fear growing inside of me, a seed planted by a boy. And in the heat of the moment I fell for that man only to wake the morrow to tell him it cannot be. Months later now, I thought I had convinced myself of this false reason. But in a moment of peace, no distractions to cloud my judgment, my heart caught up to my head and told me of the real reason. And now I am dead. The seed has stopped growing. But its venomous flower has already bloomed and done its damage. I am but one of many broken hearted souls with many mistakes done and many more to proceed, to follow. And I ask of you now — What should a girl do? When she no longer welcomes love — But instead wishes it she had never kn own?

4 Uncommon Elements for Your Best Topic in Research Paper

No matter what subject you study, at some point, you’ll be asked to write a research paper. In order to come up with the best topic in research paper writing, it’s important to make sure that your idea stands out. Professors and teachers read literally hundreds of papers per semester, and they get tired of redundant topics. That’s why you have to take your time to come up with an angle that will grab your reader’s attention. There are a few simple, but effective ways to do so. 1. Be Controversial In many instances, a research paper doesn’t merely involve reading up on a subject and reporting back the information you have learned. Often, you’ll also be asked to make some sort of arguments about the topic. The problem is, many people have already made the same arguments multiple times in the past. It’s hard to come across as original if you’re simply restating what others have already said before. Because of this, it can be useful to be controversial and make an argument that isn’t as common. You have to be careful when taking this approach though. No matter how unique or uncommon your argument may be, it won’t matter if you don’t have enough evidence to support it. Before committing to your topic, gather up your research and confirm that you can make a persuasive argument. Bad example: The Importance of Diversified Education for Modern Life Good example: The Worthless Pains: Subjects That Are Not Worth Students’ Efforts 2. Be Focused and Specific Many students fall into a common trap when writing research papers: they choose topics that are too general. This can make for a boring work. If your paper reads like an encyclopedia entry, it will be dull and won’t earn you the best grade possible. That’s why you should focus on a very specific element of your topic and research it in detail. Don’t do this without checking with your teacher first though. You have to make sure that they approve of this angle. Bad example: The Harmful Items That Influence Our Health Most Good example: Watch out! Pollution Picks out Our Youth Years 3. Use Interesting Trivia Don’t get the wrong idea. Your paper needs to be more than just a long list of trivia. There’s no way you can write an essay like this without coming across as unfocused and cluttered. That said, interesting facts that aren’t commonly-known can give your work an entertaining edge that will help you make the right impression. During your research, take note whenever you come across these pieces of trivia, and look for places where you can include them in the overall topic. Bad example: Wholefood Containing a Number of Vitamins Supports Our Life-Sustaining Activity Good example: Keep Watching! Fruits Are Not As Healthy All the Time 4. Combine Topics This simple trick is an easy way to turn two boring ideas into one unique, compelling them. As you brainstorm potential topics for a research paper, try to determine if two of your ideas are related to each other in any way. On their own, they might not be particularly striking to a reader. However, when they are combined, they can become much more engaging. Again, your teachers and professors will have to read a very large number of research papers over the course of a single semester. To earn an ‘A+’, you should take some steps to ensure that your topic is unique. These tips can help you do that. Bad example: Building Construction in the XVIII Century Good example: Building Construction of the XVIII Century Depicts Citizens’ Outlook at Life