Free essays on Physics are academic papers that are made available to the public without any cost. These essays discuss various topics related to physics, such as mechanics, electricity and magnetism, thermodynamics, and quantum mechanics. They explore new discoveries and theories, as well as the history and evolution of the field. They may provide insights on current issues in physics, or review experiments and scientific studies. Free essays on physics may serve as a valuable resource for students, teachers, and researchers who are studying or exploring the field of physics.
The Story of Erin Brockovich, a Single Woman With Three Children
In this movie Julia Roberts plays Erin Brockovich, a single mother raising three kids on her own. She is a confused character who has a big mouth and is struggling to gain employment. She has been married and divorced twice and is struggling to raise three kids as a single mother Victimized by a car accident, Erin, with the help of her lawyer tries to grab the opportunity to get money by sues for damages. As she fails to do…...
Nuclear PowerTruth
An Experiment to Find out how the Length of Wire Effects Resistance
In this experiment we are trying to find out if by changing the length of a piece of wire its affects the resistance of current. I will find this out by having a piece of wood with a piece of wire stretching along the wood. I will have a power box on connected to an ammeter and voltage meter and then these connected to the piece of wire using crocodile clips. The variable I'm going to change will be the…...
ElectricityExperimentPhysics
A-Level Physics Investigation: The Ski Jumper
To find out how the starting position of a ski jumper affects the horizontal distance travelled in the jump. We will model the jumper and the ski slope as a ball bearing and a curtain rail. We will not take air resistance, friction and other various type of energy lost into account. However in practical we have to keep in mind that they do exist and causes variation in our results.Factors which affects the range:Changing the vertical height of drop…...
EnergyExperimentFrictionGravityPhysicsTime
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Things That Affect Marble Acceleration
The following sample essay is about things that affect marble acceleration. Read the introduction, body and conclusion of the essay, scroll down. There are a number of things that affect the acceleration of the marble:- Angle/Gradient of slope. Changing the angle of the slope would affect the acceleration of the squash ball as it changes the energy the marble starts with as steeper angles raise the slope start higher so the marble would have more potential energy.- Mass of marble.…...
EnergyExperimentFrictionGravityMechanical EngineeringPhysics
Investigation Into How mass Affects the Rate of Fall of Cup Cakes
In this investigation we will observe and analyse the rate of fall of cup cakes when the mass is altered.In my preliminary work we conducted experiments where we dropped a large surface area parachute and small surface area parachute from the same height of 1 metre and 1.5 metres. The purpose of this preliminary experiment is to familiarise and understand the principles involved in the experiment.Diagram:Results of preliminary experiment:Parachute dropped at 1 metre -Time in seconds to fall 1 metreSmall…...
ExperimentForceGravityMechanical EngineeringPhysics
Transportation and issue of Oil Consumption in US
Oil and petroleum products have been mainstay of world’s economic and technological advancement since past 150 years. The mechanism driving the entire transportation system from automobiles, airplanes, railways, ships to space rockets is based on utilization of energy of petroleum oil. Petroleum products are also extensively used in a number of infrastructure industries that form the core of industrial processes and basis of existence of modern world.However, the petroleum resources of world are very limited and they cannot endlessly meet…...
Electric VehicleEnergyEnergy SourcesHydrogenIndustryPublic Transport
Pacific on Science Learning and Teaching
A journal entitiled Asia – Pacific on Science Learning and Teaching (APSLT) stated that many students have misconceptions regarding floatation or “sink or float phenomena.” Misconceptions probably arise due to certain observations that deviate from scientific laws.("Problematic issue for students: Does it sink or float?" June 2005) Possession of these misconceptions can lead to learning problems.("Science Misconceptions", 2005)Misconception on floatation occurs because this concept involves complex reasoning. The presuppositions regarding the sink or float phenomenon is identified based on the…...
DensityEducationLearningPhysicsTeaching
What Is Photosynthesis?
The following sample essay on "What is photosynthesis?" tells that Photosynthesis and cellular respiration play a significant role in the existence of all living organisms on the planet. Supplying energy to the cells they carry out is the main process, which we call life. All living organisms need the energy for the existence on our planet. Photosynthesis and cellular respiration are fundamental reactions that support normal course of all life processes in the organism. Though the passing of photosynthesis and…...
BiologyChemistryEnergyGlucoseMetabolismPhotosynthesis
The On Amazing Rubidium
The following sample essay on The On Amazing Rubidium. To start off this amazing element has just a little bit of history to it. At first when I heard about this element I thought it was some type of gas but it can turn it to a liquid at a certain type of liquid. But is actually a very shiny type of metal. Rubidium was discovered by Kirchoff and Bunsen in 1861 through the use of a spectroscope. Rubidium metal…...
ChemistryMaterialsPhysicsSodium
Application of Colloids
Applications of Colloids| Colloids play a very important role in nature, in our daily life and in industry. Some of the important applications of colloids are discussed below. 1. Food stuffs and medicines: Many of our food stuffs are colloidal in nature. Milk, butter, whipped cream, fruit jellies, ice cream, bread etc. are all colloidal in nature. For example, milk is an emulsion of butter fat in water, stabilized by milk protein (casein). Ice cream is a dispersion of colloidal ice…...
ChemistryLightMaterialsSoapWater
IMAT Test Analysis
THE ITALIAN UNIVERSITIES’ INTERNATIONAL MEDICAL ADMISSIONS TEST (IMAT) TEST SPECIFICATION In partnership with Ministero dell'Istruzione, dell'Universita e della Ricerca (MIUR) February 2013 Test Specification Test Format The IMAT will have the same structure as the existing Italian test. Candidates are allowed a total of 90 minutes to complete the test. Section 1 General Knowledge and Logical Reasoning (Critical Thinking and Problem Solving) 30 multiple-choice questions. Sections 2, 3 and 4 Science-based sections, covering: Biology; Chemistry; Physics & Mathematics. 30 multiple-choice…...
ChemistryCircleEvolutionForceHeatHeredity
Air Conditioning
HVAC Systems: Air Conditioning Dr. Harjit Singh Room 116 Howell Building harjit. singh@brunel. ac. uk Fridays 09. 30 – 11. 30am Unless otherwise specified For students enquiries: 1 Building Services Engineering: Building Air Conditioning Module (ME5508), Brunel University Introduction to the module • Credit: 15 • Teaching materials: – Provided for the MSc students. – Undergrads: Buy them from the stores. • Assignment: to be handed two weeks before Xmas, deadline-28 Jan 2013 • Students enquiries: – Fridays 09. 30…...
ChemistryEvaporationMechanical EngineeringPhysicsThermodynamics
Critical Review of Eating Grass: The Making of the Pakistani Bomb
Critical Review of Eating Grass: The Making of the Pakistani Bomb Feroz Khan's Eating Grass: The Making of the Pakistani Bomb tells the story of Pakistan's nuclear program and its army's intelligence. Feroz Hassan Khan writes this story with the experience and background as a 30-year Pakistani Army member who played an important role in Pakistan's security policy on nuclear weapons. This book tells us the story of the Pakistani government, using scientists and the military power to acquire nuclear…...
International RelationsNuclear EnergyNuclear ProliferationNuclear WeaponPakistanSecurity
The Big Bang Never Happened – Serious Alternative Science
CONTENTS Preface to the Vintage Edition xv Introduction 3 Part One THE COSMOLOGICAL DEBATE 9 1. The Big Bang Never Happened 11 2. A History of Creation 58 3. The Rise of Science 85 4. The Strange Career of Modern Cosmology 113 5. The Spears of Odin 169 6. The Plasma Universe 214 Part Two IMPLICATIONS 281 7. The Endless Flow of Time 283 8. Matter 328 9. Infinite in Time and Space 382 10. Cosmos and Society 405 Appendix…...
Computer SciencePhysicsSolar SystemTimeUniverse
Energy: Vital for Global Development
Energy is a key requirement needed for the world to develop. Most countries in the world see energy as the most important factor needed for agricultural and industrial development (Muralikrishna and Lakshminarayana 50). As the world population grows, the demand for energy is increasingly becoming a problem. The issue of climate change along with the steady decrease of the world’s fossil energy reserves has worsened the global energy crisis. Conservation of energy, therefore involves both the careful use of currently…...
EcologyEnergyEnergy SourcesNatural EnvironmentRenewable EnergySolar Energy
Physics Data Analysis coursework
This coursework assignment requires me analyse and evaluate data on copper and constantan given to me. It entails investigating the young's modulus of the metal and alloy. Thus I will use many methods during to complete my investigation. Aims: 1. To draw stress and strain graphs for the metal copper and the alloy constantan 2. To calculate the figures of young's modulus for copper and constantan 3. To discuss the physics involved Plan: In this investigation I have received results…...
ChemistryCopperData AnalysisExperimentForceHealth
Concentration’s effect on Mg and HCl reaction rate
In this investigation I will be measuring the rate of reaction between magnesium and hydrochloric acid. The rate of a reaction tells us how quickly a chemical reaction happens. Reaction Rate = change in volume, mass or concentration of substance Time taken There are two ways to measure the rate of a reaction, by observing how quickly the reactants are used up or by observing how quickly the products are formed. Measurements of the rate of reaction can be taken…...
Chemical ReactionChemistryEnergyMaterialsPhysics
Bio lab report on insulators
Foam is 5 percent air so the air molecules slow down the heat transfer from the liquid, so it stays warmer longer than cotton insulation. This leads me to predict that foam would be the best insulator, as it would trap the heat more, which will cause deficient heat lost. Identification of Variables There are three variables I will take in consideration whilst carrying out my investigation. The independent variable will be the types of materials used for insulation, which…...
ChemistryHeatMaterialsPhysicsThermodynamics
Tensile lab report
Referring from the resultant graph, we can see that the obtained graph line is straight until the one point it decrease gradually and be rupture. This shows that both variables on the graph are linearly related with each other. From the data obtained, we identify types of fracture surface of mild steel under tensile loading. The yield strength was determined to be 165. Mamma. The ultimate strength was determined to be 285. Mamma. Calculation for percentage elongation was determined to…...
ChemistryCivil EngineeringForceMaterialsMechanical EngineeringPhysics
Laws of Conservation of Matter and of Energy
The Iced Tea Debate The Salty Soup The Fire Bug 2 Use the DATA chart provided for recording observation based on three demonstrations you will watch 3 Watch each part of the experimental demonstration and make predictions about what will happen in each scenario . Record your predictions and observations in the Data an Observations section of your laboratory report format. Problem: How can matter and energy be described in parity of systems? Analysis : Use your data table to…...
CommunicationConservationEnergyLawObservationParagraph
Hybrid Cars’ Purchase Intentions
The following sample essay on "Hybrid Cars’ Purchase Intentions": discussing of usage and benefits of hybrid cars. Introduction As we are all familiar to gasoline-powered cars and electric cars, a hybrid is a cross-brid of the two sets of cars (Oliver & Seung, 2010, p.97). The car has a combination of component of both the electronic cars and the gasoline-powered cars. The vehicle distinctly has the two most powerful sources to move the vehicle. In this topic, we compare consumers…...
BehaviorCultureElectric VehicleMarketingResearch
Computerization of the Medical Records
CHAPTER I Introduction Computer-based patient records is a system in which its function are becoming an essential technology for health care in part because the information management challenges were being faced by health care professionals that are increasing daily. The system stores data regarding additional medical information records in a relational database. Most published studies to date have been in the area of keeping the records safety. The database is a general setting of compiling not only the records of…...
DataHealth CareInformation SciencePhysician
Water’s Unique Characteristics
The following sample essay on "Water's Unique Characteristics" talks about the unusual abilities of water. We will talk about adhesion, cohesion, and surface tension. Water, with its unusual bonding to hydrogen, is an invaluable resource to the Earth, wildlife, and the environment. Due to water's hydrogen bonding, it has developed many unique characteristics that many other liquids do not possess. Some of these characteristics are the following: adhesion, cohesion, and surface tension. These three characteristics alone allow for the attachment…...
ChemistryDensityEvaporationHydrogenMaterialsNature
Medical Terminology for Health Professions
Careers in the effective use of medical terminology have not gained that much interest a few years ago. With the increasing use of information technology in the field of health science, work associated with the use of medical terminology has evolved into well-paying professions. Medical indexing and medical transcribing are only two examples of these careers. Medical indexing is the answer to the increasing volume of medical literature available through electronic data bases (McGregor, 2002). It would be difficult for…...
CommunicationHealth CareMedicinePhysician
Infrared and Ultraviolet Light
Name: Tutor: Course: Date: Infrared and Ultraviolet Light Infrared Light Infrared light is a form of electromagnetic radiation whose wavelengths are longer compared to visible light. The electromagnetic spectrum exhibits a vast range of wavelengths spanning from highly energetic gamma rays and short wavelengths to low-energy radio waves and long wavelengths. The visibility of this spectrum is extremely small. Infrared light is similar to normal light only that it has a longer wavelength thus making it impossible to see with…...
ChemistryLightPhysics
Fractional Distillation Organic Lab Report
If such ideal conditions are not possible as is usually the case”then simple distillation can be applied as long as he liquid in question is composed of compounds that differ in volatility such that their boiling points differ by at least 40 to 50 degrees Celsius. Because the very essence of simple distillation is relies upon the idea that more volatile compounds have lower boiling points and thus when heated to this boiling point will occupy most if not all…...
ChemistryManufacturingMaterialsPhysicsThermodynamics
Investigatory Project Homemade Bouncy Polymer
One might think that chemists are a bunch of boring scientists who wear lab coats and look at beakers all day, but did you know that many toys you play with are made using chemistry?Some of your favorite toys like Gak, Slime and Silly Putty started out as chemistry experiments. In fact, some of your favorite toys may have been invented by chemists who work for toy companies like: Crayola, Play-Doh or Mattell. Chemistry is the study of matter, and…...
ChemistryDensityEducationEnergyHomeLearning
Chemical Bonding
Chemical compounds are formed by the joining of two or more atoms. A stable compound occurs when the total energy of the combination has lower energy than the separated atoms. The bound state implies a net attractive force between the atoms ... a chemical bond. The two extreme cases of chemical bonds are: Covalent bond: bond in which one or more pairs of electrons are shared by two atoms. Ionic bond: bond in which one or more electrons from one…...
ChemistryMaterialsPhysics
Lab Report on Ideal Gas Law
We then poured the water back into the test tube and placed the tube into the bucket with the opening upwards, turning the open end downwards after the tube was fully submerged beneath he surface. We then placed the canister directly below the opening of the test tube, and released the gas so that the bubbles rose into the test tube. Next, we used a cork whose head was larger than the opening of the test tube to block off…...
ChemistryMechanical EngineeringPhysicsPressure
Melting Point Lab
What is Melting Point? one of the characteristic physical properties of a solid What is Melting Point used for? to characterize a known compound (if you had to choose between several known compounds) to record a physical characteristic for a new compound (important for comparison between compounds) to establish purity of a known compound (if an experiment reliably forms this known compound OR if you are taking a melting point of a known compound) What kind of compounds will melt…...
ChemistryFlashcardsHeatMaterialsPhysicsThermodynamics
How Can We Say Environment
The following sample essay on "How Can We Say Environment": describes main environmental problems and it's solving way. We can be the trigger factor Of a remarkable change by making small changes in our lily life. The initial step is reducing our energy consumption. Owing the fact that a considerable amount of the electricity need is met by hydroelectric and thermal power plants, the more we use the electricity, the worse the environment is affected. The thermal power plants is…...
EnergyGreenhouse GasNatural EnvironmentWater
Air Pollution Essay
Blacksmith Institute World's Worst Polluted Places report. [l] An air pollutant is known as a substance in the air that can cause harm to humans and the environment. Pollutants can be in the form of solid particles, liquid droplets, or gases. In addition, they may be natural or man-made. [2] Pollutants can be classified as primary or secondary. Usually, primary pollutants are directly emitted from a process, such as ash from a volcanic eruption, the carbon monoxide gas from a…...
Air PollutionChemistryGreenhouse GasMaterialsNatural GasPollution
Construction and Environmental Stress
This paper as two purposes. First, it attempts to identify the principal ways in which construction contributes to environmental stress, and to quantify the contribution of construction where possible. Secondly, it considers the means available to reduce these environmental impacts, through improved technology, design or changed practices; and it suggests ways in which governments can take action to promote these changes. Sustainability is now a key concept in development thinking at all levels. Over the last two decades there has…...
ConstructionEnergyHealthMental HealthPollutionPoverty
Physics IA bouncing ball
1. Put the ruler perpendicular to the flat surface. 2. Place the ruler in the arm of the metal stand and secure it tight so that the ruler can stay still; it must be perpendicular to the surface and parallel to the stand. 3. Grab the rubber ball and place it with one hand besides the 10cm mark in the ruler. 4. With the other hand have the chronometer in 0 seconds and be ready because as you are going to release the…...
ExperimentPhysicsTime
EDCI Assignment 3
Chapter 1 Chemistry 1201/1202 Give the chemical symbol or name for the following elements, as appropriate: (a) sulfur, (b) magnesium, (c) potassium, (d) chlorine, (e) copper, (f) F, (g) Ni, (h) Na, (i) Al, (j)Si Question 1.13 Make the following conversions: (a) 62 degree Farenheit to Celsius, (b) 216.7 degree Celsius (c) 233 degrees Celsius to Kelvin, (d) 315 K to degrees Farenheit (e) 2500 degrees Farenheit to Kelvin. Question 1.25 Round each of the following numbers to four significant…...
ChemistryEnergyHeatMaterialsPhysics
Nuclear Pollution
The following sample essay on Nuclear Pollution tells about renewable energy. Kirk Sorensen fits into my essay as background of Fuchsia crisis, what caused F-Kashmir Lana leaked the radioactive substance, this background is essential because readers need know what happened in Fuchsia, so that readers can easily understand the scholarly conversation section in my essay. Author: Kirk Sorensen Author bias: Kirk Sorensen is a nuclear technologist, who operates the site neuropathology. Com, Publisher: Forbes. Forbes is an American business magazine…...
EnergyNuclear EnergyNuclear PowerPollution
The Poetry of Physics
Which of the following suggestions would best enhance a reader's understanding of this poem? Read a variety of sources about the style and instruments used by jazz musicians. Which statement best describes how the author conveys the message that humans are no match for the power of a black hole? He personalizes the experience for the reader and uses vivid imagery to create a clear mental picture. Which sentence from the excerpt supports the idea that falling into a black…...
CommunicationFlashcardsMusicPoetrySpeed
Linear Motion Lab
2. LINEAR MOTION In this experiment you will study the motion of an object in one dimension from a number of points of view. You will demonstrate how the variables of motion are related by differentiation and integration and investigate the relationship between potential and kinetic energy. Theory Why Study Motion? Motion is everywhere in the universe. Only at a temperature of absolute zero is the motion in any body truly absent. If motion exists then so also does energy.…...
EnergyFrictionMathematicsMotionPhysicsTime
Surface Tension Of Water
The capillary rise method was used to measure the surface tension of aqueous solutions of sodium chloride and acetic acid. Molar concentrations of 0. 5 M and 1. 0 M for each solution were tested. The results were then compared to the surface tension of pure water to observe how solute properties affect the surface tension of water. The experimental results showed that adding acetic acid solute in water lowers the surface tension of water. As the concentration of acetic…...
ChemistryConcentrationExperimentForceMaterialsNature
The Lambda Protocol Physics Investigation
This experiment is designed to produce DNA bound in gel to fragment according to the restriction enzyme used to cut it up and to the sizes of these subsequent fragments. The aim of this experiment is to produce a DNA fragmentation, which will be of known sizes because the entirety of the DNA genome has been mapped. So running D NA alongside other DNA will allow the size of the other DNA to be found. Prediction: As in the experiment…...
BiologyBiotechnologyChemistryGeneticsPhysics
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