Premium Essay

Physics Basics

In:

Submitted By Tahieshaw
Words 384
Pages 2
Scalars are quantities that have magnitude only; they are independent of direction. Vectors have both magnitude and direction. The length of a vector represents magnitude. Scalars:-- temperature; (68 degrees, no direction) -- cost; ($37.50, Velocity is an example because you have magnitude and a direction (for example 30 m/s in the +x direction). Weight is a vector quantity because you have a force (the weight), and a direction (directed towards the center of the earth

When sitting on a chair, your body exerts a force on the chair and the chair exerts an equal force back if the chair didn't exert the same force you would fall on your butt. Newtons third law states that when you apply a force on an object the object applies the same force back in the opposite direction. For every action there is an equal and opposite reaction.

(A)Action; hammer hits nail. Reaction; nail hits hammer. (B) Action; Earth gravity pulls the book down. Reaction; the ground pushes up on the book. (C) Action; helicopter blade pushes air downward. Reaction; air pushes helicopter blade upward.

Because of Newton's Third Law, I know the wall reacts by pushing back the same amount of forcewhich is a force of 30 N.
From Newton's Second Law,

F = ma
A = F / m a = (30 N) / (60 kg) a = 0.5 m/s2

Wa1
A. Aristotle: in order for An object in motion to stay in motion a force must act on it Galileo: When friction is absent, a moving object needs no force to keep it moving. It will remain in motion all by it self. Newton: An object at rest tends to stay at rest until acted upon by an outside force. Aristotle belived that force was necessary for an object to continue to move while Galileo and Newton believe an object in motion will stay in motion unless an outside force stops it.
B. Aristotle would say that the ball was striving to reach its "natural state" of rest. Galileo would say that

Similar Documents

Premium Essay

Career Researsch Paper

...Research Paper Part I: Physics strives to identify fundamental principles governing the build and deportment of matter, the engenderment and movement of energy, and the interaction of matter and energy. Some physicists use those principles in theoretical areas, such as the nature of time and the beginnings of our universe, while some work in practical areas such as the development of advanced materials, optical and electrical devices, and medical equipment (BLS, para. 2). I chose physics for my career research paper because I have an intellectual curiosity for the world, the universe, and everything in between. I want to understand how matter moves through spacetime, and how the universe behaves. Understanding physics also means understanding many other scientific areas of study, thus providing an intimate knowledge for reality as we know it. Many physicists work in laboratories, where they design and perform experiments with sophisticated equipment. Some of that equipment includes lasers, particle accelerators, electron microscopes, and mass spectrometers. Although much research may be conducted through experiments in the lab, physicists still spend much time in offices planning, recording, analyzing, and reporting on research. Many who are deeply involved in research way also work very long or irregular hours. For basic research positions, independent research in industry, faculty positions, and advancement to managerial positions, a Ph.D in physics or related field is...

Words: 954 - Pages: 4

Premium Essay

Isaac Newton Research Paper

...“If I have seen further it is by standing on the shoulders of giants.” (Isaac Newton) There are many great scientists in the world, working in a variety of different fields, each with their own accomplishments and discoveries. Isaac Newton was one of the biggest and greatest scientists of his time, and often attributed his work to the great Galileo Galilei. In this, he was most modest about his own success. Isaac Newton being a physicist and mathematician was very successful in his work. Newton developed the principles of modern physics, such as the laws of motion. Philosophiae Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy) has been hailed as the single most influential books on physics, a book written by Newton. In this book Newton covers and wrote of information on nearly all essential forms of energy. Newton even made discoveries in 3 different fields: Optics, motion, and Mathematics....

Words: 514 - Pages: 3

Premium Essay

How Something Can Come from “Nothing”

...Conforming our beliefs to the evidence of reality is a hard transition for most. Unraveling the deep truths about our origins in this universe is confronting the very foundations of our society’s historic religious establishments. Could modern science bring us closer to a true pantheistic god of beauty, or destroy all notions of a sense of purpose (Krauss, 2012)? Regardless of your faith, the laws of physics are proving every day that something can come from nothing. A god of the gaps is probably the most common, as well as most elementary, argument for debating science vs. religion. This idea is simply employing a divine meaning to things that science has no answer to. It is often a question of why, and assumes purpose to everything. One thing that science cannot refute is a purpose to our world. It is scientifically inert, that is to say that there is no plausible way to test its predictions. The scientific method is just field testing the observable world we see around us. We are all naturally inquisitive; we thrive to find our “purpose” in the world. But this, I believe, is simply a limit to our senses. When there are questions that science cannot answer, such as why we came to be, skeptics often say that it is outside the bounds of our universe. This, to me, is just a lazy answer. The god of the gaps is a “fill in the blank” answer to everything that has been so far, untestable. This does not mean that anybody has the right to invoke a spiritual...

Words: 1937 - Pages: 8

Premium Essay

Questionnaire

...SURVEY QUESTIONNAIRE Name:_________________________________________ Year level & Sec.: _______________________________ Part I Science Preferences Direction: Below are list of sciences or subjects in science. Encircle the science that correspond to the science that you prefer most. Aeronautics Anatomy Anthropology Archaeology Astrology Astronautics Astronomy Biochemistry Biology Botany Chemistry Cosmology Ecology Genetics Hydrology Hygiene Metallurgy Microbiology Neurology Optics Physics Part II Science-related Career Choices Direction: Below are list of college courses grouped into basic sciences and applied sciences. Please put a check mark before the course that you prefer most. Basic Sciences _ Chemistry _ Physics _Mathematics _ Biology Applied Sciences _ Agriculture _Geology _Environmental Science _ Computer Science _Mechanical engineering _ Chemical Engineering _ Electronics & Communication Engineering _Computer Engineering _ Mining Engineering _Physics Teaching _Chemistry Teaching _Biology teaching _ Mathematics Teaching _Statistics Part III Factors Influencing Science-related Career Choices Direction: Below are lists of possible factors thought to influence your pursuit of science-related career. Please check the number which corresponds to your perception the extent of influence using the 5 continuum scale wherein: 5- means strongly...

Words: 273 - Pages: 2

Premium Essay

How the Telescope Changed Astronomy

...eventually were found out to be planets moving around the sun (although at the time they were discovered, it was thought that everything revolved around the earth); albeit all of these stars and planets were discovered before Galileo’s telescope. The tool still helped gain better calculations of the stars, which helped Galileo support Nicolaus Copernicus’ heliocentric (sun-centered) solar system as opposed to the geocentric (earth-centered) solar system that people in those times believed. With Isaac Newton, one of the most famous physicists, discovering most of laws of motion through his studies in astronomy, Philosophiae Naturalis Principia Mathematica, one of the greatest works in the Scientific Revolution, was born. From Newtonian physics, theories of fluid mechanics, electricity and magnetism, and most importantly, quantum mechanics. Further along the line of the history of telescopes, humans eventually needed to see deeper into space. This was revolutionary because now mankind wasn’t just looking up into the constellations and the movement of the sun and the moon, now they were actually...

Words: 2278 - Pages: 10

Free Essay

Paradigm Shift

...correct but, every so often, a scientist has a revelation. More often than not, they feel the weight of scientific and public opinion, and become ridiculed. However, slowly but surely, other scientists try out the research, and a few lost voices in the wilderness increase into a new way of thinking. For example, explorations of chaos theory took a long time to take root, and his ideas were marginalized, because they lay outside the established classical paradigm of physics. Early Chaos Theorists found difficulties in receiving funding, finding supervisors, and finding journals willing to publish their research. Kuhn’s paradigm definition is a little more than a theory, although the terms are often used interchangeably. It is a complete and overall view of a phenomenon, often relying upon some basic principles. This process continues for a long time, until some experiments begin uncovering errors. A certain amount of error is accepted, and it can be absorbed by slight changes in the paradigm. However, eventually, the basic and fundamental principles may be shown to have error and there is a paradigm shift, a way of looking at the same information in a completely different way. Probably the...

Words: 622 - Pages: 3

Premium Essay

A Briefer History of Time Review

...hawking with Leonard Mlodinow Bantam Books (2005) Pages 1-60 A Briefer History of Time is a book aimed at explaining our universe It was written by Steven Hawking, and as the title suggests is a 'briefer' version of the original book. Steven hawking is incredibly famous for his contributions to the world of physics, this was all achieved while constantly battling a motor neurone disease. His first book a brief history of time was incredibly successful but many people found it to be too complex and some key concepts were hard to understand, Thus this version was released. Its aim is to make the difficult scientific theory's more accessible to the general public. The book is an attempt to explain everything we know, or think we know about the universe and cosmology. The first few chapters of the book are aimed at explaining the basics of physics and how it has progressed over time, It goes on to talk about Newton's laws and explain what a scientific theory is. This is a great move by the authors because it helps to explain the complex material by first going through the foundations of physics, this in turn makes the book far more accessible to the public . This is perfect as the book is aimed at ordinary people with an interest in science. The language used in the book is fairly technical but has been simplified to make the book easier to understand, this has been done well because they haven't made it patronising. The style of explanation...

Words: 905 - Pages: 4

Premium Essay

Galileo Research Paper

...We now know that the speed of light is way too fast to be measured by this experiment. Galileo brought upon the public the basic idea of relativity, that “the laws of physics are the same in any system that is moving at a constant speed in a straight line, but not of its speed or direction.”(Hoskin, Michael A 62) While Galileo's statements of mathematics to experimental physics were new, his mathematical methods were the usual ones at the time. Even as there were many other studies he went in and different experiments there were way too many to even put in but as were listed above were the major one’s that later affected future and current people, with their views and their discoveries that effected history...

Words: 1937 - Pages: 8

Free Essay

Astronomy

...early civilizations such as the Babylonians, Greeks, Chinese, Indians, Iranians and Maya performed methodical observations of the night sky. However, the invention of the telescope was required before astronomy was able to develop into a modern science. Historically, astronomy has included disciplines as diverse as astrometry, celestial navigation, observational astronomy, and the making of calendars, but professional astronomy is nowadays often considered to be synonymous with astrophysics.[2]During the 20th century, the field of professional astronomy split into observational and theoretical branches. Observational astronomy is focused on acquiring data from observations of astronomical objects, which is then analyzed using basic principles of physics. Theoretical astronomy is oriented toward the development of computer or analytical models to describe astronomical objects and phenomena. The two fields complement each other, with theoretical astronomy seeking to explain the observational results and observations being used to confirm theoretical results.Amateur astronomers have contributed to many important astronomical discoveries, and astronomy is one of the few sciences where amateurs can still play an active role, especially in the discovery and observation of transient...

Words: 577 - Pages: 3

Free Essay

Mechanical Philosophy

...Mechanical Philosophy During the sixteenth and seventeenth centuries, natural philosophers were starting to reject Aristotelianism and began finding other forms of natural philosophy to study and believe in. One of the popular philosophies in the seventeenth century was mechanical philosophy. “Mechanical Philosophy sought to explain all natural phenomena in the terms of matter and motion without recourse to any kind of action at a distance (cause and effect without any physical contact) (Mechanical Philosophy).” This paper will go into detail about the mechanical philosophy’s background, advocates of the philosophy and later developments. The mechanical philosophy was foreshadowed in Galileo and Kepler. As the seventeenth century was coming to an end, the general public agreed that the universe was made up of small solid corpuscles, which moved and changed in direction as they were bumped by each other. The material atom was in favor of the mechanical philosophy. This philosophy originated from the views of the Greek philosopher Epicurus. He always looked for the main key for a good life. “Epicurus believed that the greatest sources of human unhappiness, apart from bodily pain, are fear of the gods and anxiety about punishment after death (“Mechanical Philosophy”).” His version of atomism is how the conclusion of a human soul is material, composed of atoms that are very small came up in science. Soon after Epicurus claimed this was true he exposed that the gods’...

Words: 1571 - Pages: 7

Free Essay

Science

...Read more: http://www.universSir Isaac Newton is best know for his laws of motion. Many people’s knowledge of his scientific contributions stops there. Isaac Newton’s inventions contributed a great deal to our current understanding of subjects from optics to theology and how early scientists were able to view their world. In mathematics Isaac Newton inventions included laying the ground work for differential and integral calculus. His work was based on his insight that the integration of a function is merely the inverse procedure to differentiating it. Taking differentiation as the basic operation, he produced simple analytical methods that unified many separate techniques previously developed to solve apparently unrelated problems such as finding areas, tangents, the lengths of curves and the maxima and minima of functions. Isaac Newton inventions in mechanics and gravitation were summarized the Principia. His discoveries in terrestrial and celestial mechanics showed how universal gravitation provided an explanation of falling bodies on Earth and of the motions of planets, comets, and other bodies in the heavens. He explained a wide range of then unrelated phenomena: the eccentric orbits of comets, the tides and their variations, the precession of the Earth’s axis, and motion of the Moon as perturbed by the gravity of the Sun. This work includes Newton’s three famous laws of motion, fluid motion, and an explanation of Kepler’s laws of planetary motion. Isaac Newton inventions...

Words: 356 - Pages: 2

Premium Essay

Physics Of Football: Newton's Laws Of Motion

...When you throw a football across the field to your friend, you are using physics. You make calculations for all the situations that can occur, such as: distance, wind and weight of the ball. The farther away your object is, the harder you have to throw the ball, or the steeper the angle of your throw, as if your object is on top of a hill and you was at the bottom of the hill. This calculation is done in your mind, and it’s called physics. You just don’t call it that because it’s so natural. Physics the branch of science concerned with the nature and properties of matter and energy. The branch of physics that is most relevant to football is mechanics. Watching a football game could be teaching you something other than who threw the...

Words: 1527 - Pages: 7

Free Essay

English Essay

...The British Society for the Philosophy of Science The Nature of Philosophical Problems and Their Roots in Science Author(s): K. R. Popper Source: The British Journal for the Philosophy of Science, Vol. 3, No. 10 (Aug., 1952), pp. 124-156 Published by: Oxford University Press on behalf of The British Society for the Philosophy of Science Stable URL: http://www.jstor.org/stable/685553 . Accessed: 13/09/2013 04:37 Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at . http://www.jstor.org/page/info/about/policies/terms.jsp . JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org. . Oxford University Press and The British Society for the Philosophy of Science are collaborating with JSTOR to digitize, preserve and extend access to The British Journal for the Philosophy of Science. http://www.jstor.org This content downloaded from 58.27.243.214 on Fri, 13 Sep 2013 04:37:15 AM All use subject to JSTOR Terms and Conditions THE NATURE OF PHILOSOPHICAL PROBLEMS AND THEIR ROOTS IN SCIENCE * K. R. POPPER I IT was after some hesitation that I decided to take as my point of departurethe present position of English philosophy. For I believe...

Words: 13723 - Pages: 55

Premium Essay

Behht

...Center for Theoretical Physics in Bohol are being recognized for their innovative way of teaching science in the Philippines. "Their purposeful commitment to both science and nation, ensuring innovative, low-cost, and effective basic education even under Philippine conditions of great scarcity and daunting poverty showing how commitment, competence, and collaborative leadership can truly transform individual lives and galvanize community action." The Bernidos – who came from privileged backgrounds – both earned their doctorate degrees in physics from the State University of New York. In the 1980’s, they headed the National Institute of Physics at the University of the Philippines and were university awardees for teaching and research excellence. They stood at the top of their profession and were well respected in the world community of physicists. In 1999, the Bernidos surprised many of their colleagues by moving to the poor, remote municipality of Jagna, in Bohol province, to run an old, struggling high school owned by Christopher’s mother. Christopher said it was not just filial duty that led both of them to devote themselves to the Central Visayan Institute Foundation (CVIF), as the school’s president and principal, respectively. The CVIF was a small school of about 500 mostly poor students. They could have simply closed down the school but they saw as a challenging opportunity. They both realized that the school was a microcosm of the problems of basic education in the Philippines...

Words: 524 - Pages: 3

Premium Essay

Research Paper On Max Planck

...Max Karl Ernst Ludwig Planck was born on April 23, 1858, in Kiel, Germany. He was the sixth child of Julius Wilhelm and Emma Planck. His parents taught him at a young age the family history of success in academics, kindness, and morality. However, he did not do as well at his schooling as was hoped, although he excelled at music and it became a passion for him. He was even gifted with perfect pitch. In the end, he decided to go to college and pursue physics, even though he loved music. The reason he chose physics was, in his own words, because “The outside world is something independent from man, something absolute, and the quest for the laws which apply to this absolute appeared to me as the most sublime scientific pursuit in life” (http://www.famousscientists.org/max-planck/)....

Words: 586 - Pages: 3