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.
Diagnostic Subsurface Horizons
Agric -illuvial horizon formed under cultivation-significant amounts of illuvial silt, clay and humus-directly below Ap horizon-thickness of 10cm or greater Albic -eluvial horizon that is lightly colored and low in clay and oxides (leaching)-1cm or greater-separate horizons that, if they were together, would meet requirements for a mollie epipedon or separate lamellae that together would be an argillic horizon Anhydritic -anhydrite accumulation through neoformation and transformation-hue of 5Y, chroma (moist and dry) of 1 or 2, and value of 7…...
ChemistryMaterialsNatural ResourcesResources
Synthesis of chloropentaaminecobalt(lll) chloride
Insert the tube into the MSB and take a mental average of the fluctuating reading. 5. Repeat the previous step three times. 6. If the MSB displays a negative number, the coordination complex is diamagnetic and no further steps are necessary. 7. Determine how many unpaired electrons reside on the cobalt. E. Interpreting Infrared Spectrum 1. Assign the bands of the infrared spectrum of the complex. Results A. Synthesizing Carbonatotetraamminecobalt (III) nitrate: [Co(NH3)4CO3]NO3 The first attempt to dissolve the…...
ChemistryMaterialsPhysicsWater
Ancient Egyptian and Greek Medicine, a Comparison
In this essay, we shall be comparing the progress of medicine in ancient Egypt and ancient Greece. We will explore the different factors contributing to the medical development of each civilisation and how they formed the basis for modern medical practice. Economy Egypt and Greece were agricultural empires. Egypt was one of the first to settle and farm the Nile. Good harvests from the rich silt meant that Egypt had enough food to trade with other Empires, like India, China,…...
Alternative MedicineAncient EgyptHealthHistoryMedicineMesopotamia
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Albedo and Earth’s Temperature
The term "albedo" refers to the absorption of radiation False Without an atmosphere, the earth's temperature would be a frigid -100 degrees Celsius False Over the past 400,000 years, CO2 abundances in Earth's atmosphere have varied in correlation with Earth's temperature True Molecules are called 'greenhouse gases' if they Absorb infrared radiation, but are transparent to visible light. Global warming and anthropogenic climate change are terms that refer to the same environmental issue, specifically the alteration of Earth's surface temperature…...
ChemistryClimateEarthPhysicsSun
The Arrhenius Equation and Activation Energy
In this lab, our task is to determine how different degrees of temperature affect reaction rates. A Swedish chemist, named Svante Arrhenius discovered the relationship between temperature and reaction rate. In finding this relationship a new equation was formed called the Arrhenius Equation: Reaction rate constant k = A e -Ea/RT The factor A represents the frequency of collisions between two molecules in the proper orientation for reactions to occur. The value of A is determined by experiment and will be different for…...
ChangeChemical ReactionChemistryPhysics
IB Physics HL Lab Report on Projectiles
Even if the actual measured results differ sensibly from the hypothetical values, we can clearly see that an inclination of 45 degrees generates a much longer distance travelled horizontally. During our experiment, water pressure was not constant and there could have been some fluctuations due to wind variation. Those uncertainties must be taken into consideration. Conclusion and Evaluation Our mathematical proof and hypothesis were right that in parabolic motion, 45 degrees offers the greatest horizontal distance travelled. The values recorded…...
EducationExperimentHypothesisLearningPhysicsPressure
Physics-Inclined Plane Lab
If an object is placed upon a surface that is inclined at a certain angle then that will decide the acceleration in which the object is going down the inclined plane. When looking at an inclined plane it is important to see what forces are acting upon it to see what the object is doing. In our case of there was Fn, Gravitational Force and, Fd. These forces act upon the object to see where it is going. In an…...
ForceFrictionMechanical EngineeringPhysics
Circular Motion Physical Experiment Report
Circular motion is the motion that links velocity, mass, and radius of the string of an object. If any one of the factors is changed, the motion of the object gets affected or the velocity/acceleration gets affected. All objects going through circular motion experience a force called the centripetal force. Centripetal force is the force that acts from the center of the circular path and makes the object move in the curve instead of flying out. In other words, centripetal…...
ForceGeometryMechanical EngineeringPhysicsSpace
Roller Coasters and Their Theory
2010 NAME: CAROLENA SEEREERAM DINESH TEELUCKSINGH DEVIANN SINGH VINCENT BAHADUR KERLON MOORE INSTRUCTOR: MR. RISHI RAMPERSAD COURSE: ENGINEERING SCIENCE COURSE: ENGINEERING SCIENCE CLASS: COMPUTER ENGINEERING (YEAR 1) INSTRUCTOR: RISHI RAMPERSAD GROUP MEMBERS: CAROLENA SEEREERAM DINESH TEELUCKSINGH DEVIANN SINGH VINCENT BAHADUR KERLON MOORE ABSTRACT A roller coaster is an amusement park ride where passengers sit in a series of wheeled cars that are linked together. The cars move along a pair of rails supported by a wood or steel structure. In…...
EnergyForceMechanical EngineeringPhysicsResearch
Basics of Electricity Safety
At home electricity runs the lights, television, toaster and more. Electricity is a form of energy. Energy is power, the power to do and move things, and to make things work. Electricity is made up of atoms. An atom centre includes at least one proton and neutron. At many a least one electron travels around the centre of the atom at a huge amount of speed. The movement of electrons produces electricity. There are many ways of finding electricity or…...
ElectricityGovernmentMilitaryPhysicsSafetyScience
Laboratory: Conservation of Momentum Experiment
Propagation of Uncertainties for Velocity of Pucks for Final Momentum. Final Percent Uncertainty for Average Initial Velocity of Cue Puck: 1.136...%+0.180...%=1.317% Final Percent Uncertainty for Average Final Velocity of Cue Puck: 0.714...%+0.180...%=0.895% Final Percent Uncertainty for Average Final Velocity of Stationary Puck: 0.90%+0.18145=1.081% If the collision is a perfectly elastic collision, then both the momentum and the total kinetic energy and conserved: Conservation of momentum requires the following to be true for both the x and y components: (Pcix+Psix)-(Pcx1+Psix1)=0 (Pciy+Psiy)-(Pcy1+Psiy1)=0…...
CommunicationConservationFrictionMechanical EngineeringMotionPhysics
Langdon Winner, Do Artifacts Have Politics
DO ARTIFACTS HAVE? POLITICS? [from Winner, L. (1986). The whale and the reactor: a search for limits in an age of high technology. Chicago, University of Chicago Press, 19-39. ] No idea is more provocative in controversies about technology and society than the notion that technical things have political qualities. At issue is the claim that the machines, structures, and systems of modern material culture can be accurately judged not only for their contributions to efficiency and productivity and their…...
GovernmentNuclear PowerNuclear ProliferationPoliticsPropertyReason
Thermal insulators
To investigate different materials for the most effective thermal insulator for a house. Introduction Heat transfer is the gain and loss of energy. There are three ways in which thermal energy can be transferred: Conduction Convection Radiation Conduction - this is when energy travels from molecule to another. When one molecule receives energy it begins to vibrate and hits other molecules and makes them vibrate. And will spread throughout the object. Convection - this will only occur in gases and…...
ChemistryHeatMaterialsPhysicsThermodynamics
The Pulfrich phenomenon
Introduction What is the Pulfrich Phenomenon? The following sample essay on The Pulfrich phenomenon. This creates the semblance that an object oscillating on a frontal plane appears to follow an egg-shaped tract. The most widely accepted theory for this semblance is that cut downing the brightness of a stimulation to the retina of one oculus causes comparatively slower excitement of the photoreceptors ( www.suic.edu ) and hence a delayed processing of the image relation to the other oculus. This creates…...
BrainEyeLightNervous SystemPerceptionVision
Contrast Sensitivity Measurements
The following example essay on "Contrast Sensitivity Measurements" talks about an experiment that would help was to find if comparable contrast sensitiveness measurements could be taken utilizing different psychophysical methods. Introduction Contrast Sensitivity is defined as the ability of the oculus to observe luminosity contrast " . ( Millodot, M, 2009 ) It is of import as it makes objects stand out from one another. Contrast Sensitivity proving provides a better apprehension of the patients public presentation of real-world undertakings…...
ContrastLightNervous SystemVision
Process and How Electroplating Works
It basically explains what electroplating is and what its function is in the process of electroplating. A section from this website gives detail parts of how electroplating works: "Electroplating is the deposition of a metallic coating onto an object by putting a negative charge onto the object and immersing it into a solution, which contains a salt of the metal to be deposited. The metallic ions of the salt carry a positive charge and are attracted to the part with…...
ChemistryElectricityIndustryMaterialsWork
Galileo’s Rolling Ball experiment
Galileo in his rolling ball experiment investigated the acceleration of a ball rolling down an inclined plane, using a similar setup I will investigate how the time taken to roll down the inclined plane varies with the vertical height change. Theory: When two similar objects are thrown vertically downwards, they are in a state of free-fall. Both objects will hit the ground simultaneously; the force which causes these objects to fall down is the pull of gravity which is also…...
ForceGravityMechanical EngineeringPhysicsTime
Compared to the original Daniell Cell
By completing and testing this hypothesis our group believes that it will factor in the aim of increasing the voltage and current of our Daniell Cell. Hypothesis 2 According to the Standard Reduction Potentials for Half-Reactions table, our group hypothesises that by changing the half cells so that their E0 values are a greater distance apart that the voltage and current will show an increase and improve the Daniell Cell. The general make up of a Daniell Cell is two…...
BiologyCellChemistryElectricityMaterials
The Football Kick Biomechanics
The effects of a strength and kick co-ordination preparation programme on lower limb speed, ball speed and articulatio genus extensor strength: Differences between male and female football participants. Football ( besides known as association football ) is one of the most popular squad athleticss worldwide ( Katis & Kellis, 2007 ) with 100s of 1000000s purported to play ( Masuda et al, 2005 ) and in conformity is watched on 6 continents ( Ekstrand, 1994 ). Due to this popularity,…...
FootballForceMuscleResearchSpeedStatistics
Retort stand and clamp
In reference to the safety aspect, the radiation source is kept inside a lead block, inside a wooden box, inside another wooden block, tongues are present for the movement of the source so it never directly handled. The sources themselves are in holders, which channel the radioactive output in one direction alone. However as I am working with Gamma radiation this is slightly irrelevant. Also the rad-count dector will be placed in a clamp, to ensure it's constant position. The…...
ChemistryExperimentLightPhysics
Introduction to Flood Routing
The Muskingum flow routing method has been very well researched and established in the hydrological literature. Its modest data requirements make it attractive for practical use. The paper gives a general overview of the Flood routing concept and types, and then goes on to explain the Muskingum method in detail. Introduction to Flood Routing Flood routing is a technique which is used to determine the flow hydrograph characteristics like shape and movement along a water course, and how these are…...
Civil EngineeringFloodPhysicsWater
X-Ray Interactions With Matter
The following sample essay on X-ray interactions with matter This document presents the interactions of x-ray with matter. It talks about the five types of x-ray interactions with matter, photoelectric absorption, compton scattering, pair production, coherent interaction, and photodisintegration. Each of this x-ray interactions are discussed in a manner that it can be understood by the general public. This document also dwells on the various exposure factors involve in radiography. It also provides a brief discussion of the attenuation that…...
ChemistryPhysicsQuantum Mechanics
Effects Of Ultraviolet Light On The Eye
Various eye problems have been associated with overexposure to sunlight. Cause Ultraviolet Ray WHY? People are unaware of what UVR can cause to their vision/eye sight. WHY? Insufficient spread of information to the public. Sub Problem How can we completely inform the public about the dangers caused by the UVR? Introduction Another radiation from the sun can harm not only your skin but also your eyes. Extended exposure to the sun’s UV rays has been linked to eye damage, which…...
EyeLightOzone LayerSunVision
Role of Man-Maintaining Ecological Balance
Uncertain and Changing seasons, increasing global temperature (Global Warming), Increasing water level of sea, ozone layer problem, melting down of south and North Pole, increasing level of carbon emission in the air and many such alarming and demanding situations are the outcomes of deteriorated ecological balance. Temperature of Globe is increasing in last one or two decades unlike earlier eras. There are different reasons of such result in increasing Global temperature – called Global Warming and these reasons are- 1.…...
EnergyNatural EnvironmentPollutionTransport
Partition Coefficient of Ethanoic Acid: Water vs Butan-2-Ol
To determination the partition coefficient of ethanoic acid between water and butan-2-ol. Procedure 1. The room temperature was recorded. 2. 15cm3 of the given aqueous ethanoic acid and 15cm3 of butan-2-ol were poured into a 100cm3 separating funnel, using suitable apparatus. The funnel was stoppered and was shook vigorously for 1 to 2 minutes. (The pressure in the funnel was released by occasionally opening the tap. ) 3. 10cm3 of each layer was separated approximately. (The fraction near the junction…...
ChemistryMaterialsPhysicsTitration
Multiverse: A Brief Introduction
Multiverse From Wikipedia, the free encyclopedia For other uses, see Multiverse (disambiguation). Physical cosmology Universe · Big Bang Age of the universe Timeline of the Big Bang Ultimate fate of the universe [show]Early universe [show]Expanding universe [show]Structure Formation [show]Components [show]Timeline [show]Experiments [show]Scientists v • d • e The multiverse (or meta-universe, metaverse) is the hypothetical set of multiple possible universes (including the historical universe we consistently experience) that together comprise everything that exists: the entirety of space, time, matter, and…...
MetaphysicsPhysicsUniverse
Global Warming
Take a position: Global warming is a real problem. 1000 word Essay. Using persuasive technique Global warming is the increase in the average temperature of Earth’s surface. Since the late 1800’s, the global average temperature has increased about 0. 7 to 1. 4 degrees F (0. 4 to 0. 8degree C). Climate change is happening and its effects are real. However, the larger the change in climate, the more negative the consequences will become. Global warming will make life harder…...
ClimateEarthGlobal WarmingNatural EnvironmentNatural GasRain
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