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Physics Essays

110 samples in this category

Speed and Velocity as Factors to Forecast Kinematics of Rolling Object

The topic of kinematics in general, is an interesting topic for learning about and understanding since it includes a variety of subtopics that can be integrated through physics. This research topic can help people predict the motion of an object depending on the surface it rolls on, its density, its shape, its mass, and its volume. It interested me to find out/explore the wide perspective in predictions that come up when researching about kinematics of any rolling object, and how...
4 Pages 1818 Words

Soundwaves Represented by Various Speed and Energy of Air Molecules

Air we breathe in consists of molecules. Even the tiniest of regions of air will contain millions and millions of molecules. These molecules are in constant motion, traveling randomly and at great speed. There is a constant bombardment with each other and every other object that is in contact with the air. One interesting thing about air is that it is a medium through which heat or sound travels. But our current main attention will be on sound. Sound is...
2 Pages 811 Words

People and Physics behind the First Aircraft Flying Faster Than Speed Sound

If someone would have told us, more than 70 years ago, that could travel faster than the speed of sound, we’d nod our heads in disbelief and laugh. I mean, think about it. – Breaking the sound barrier is as mind-boggling as superman’s ability to defy gravity. But what if I told you, that a man achieved the impossible right before the 1950s? So, who is this guy? How did he manage to travel faster than the speed of sound?...
4 Pages 1701 Words

Electromechanical Solution for Vehical Speed Detection

Abstract Many people are getting killed in road accidents daily and it has become one of the major concerns for the whole world. According to WHO about 1.25 million people die in road crashes each year, on average 3,287 deaths a day and an additional 20-50 million are injured or disabled. The motivation behind this work is an attempt to make an Arduino based IOT system for real-time monitoring of speed and which aware people about the speed of the...
6 Pages 2762 Words

Speed of Light and Einstein’s Theory of Relativity: Theoretical Method to Slow Time

Albert Einstein was born March 14, 1879, in Germany and was a physicist who developed the special and general theories of relativity, considered to be his most famous piece of work. His research spanned from quantum mechanics to theories about gravity and motion. After publishing some papers that changed how the world knew space, time and gravity, he toured the world giving speeches about his discoveries. Since a very young age, Einstein was extremely interested in science and was influenced...
3 Pages 1345 Words

Analysing Effect of Extra Wheels on Speed of Solar Car

Introduction: This report investigates the effect of wheels on the speed of a solar car. This is achieved by considering the effects of force and energy transformation and what happens if extra wheels are added. Force is the act of pushing or pulling on an object with mass that causes it to change velocity (e.g.: accelerating a car). Force is also a vector which means it has both magnitude and direction. Energy transformation aka energy conversion is the act of...
2 Pages 882 Words

Using the Concept Speed in Understanding Special Theory of Relativity

Introduction Newton’s three laws of motion for several decades remained a matter of course. Until 1905, the physicist Einstein published a paper questioning the accuracy of these laws, which are now known as the Special Theory of Relativity, followed by the General Theory of Relativity, Its lack of understanding, where this understanding was based primarily on Newton’s law of gravity. The theory of relativity states that the laws of physics do not change and are the same everywhere. The theory...
2 Pages 931 Words

Determining the Speed of Light by Applying the Fizeau-Foucault Apparatus

1. Introduction As a fundamental constant, the exact value of the speed of light has been disputed for centuries. The measurement of the speed of light brought arise to new areas of Physics such as Einstein’s Theory of Relativity. This Theory of Relativity was based entirely on the relativistic effects caused by objects moving near the speed of light. This brought arise to an exclusively new area of Physics, furthermore it is no wonder why the velocity of light in...
3 Pages 1180 Words

Essay on Why Speed Limits Are Important

Rational The claim, ‘Every K over is a killer has several aspects that could be investigated. The claim implies that driving an excessive amount over the regulated speed limit is dangerous and could cause possible death. The first aspect that can be investigated is what speed limits are and how speed limits are appropriately chosen for different areas and driving conditions. The research found that speed limits are set to improve safety by reducing the probability and severity of a...
3 Pages 1399 Words

Role of Democritus and Dalton in the Development of Atomic Theory: Descriptive Essay

History of atom Our journey with the atom model dates back to 442 BC when Greek Philosopher Democritus proposed his theory of matter. While his theory was obviously not based on any observable science, it was entirely dependent on rationalism and was largely inspired by Greek philosophers, Leucippus and Anaxagoras. Democritus enters this discussion facing phenomenal resistance. His proposition so the atom disputed the prior explanation Empedocles, who describes the world and its contents as being made of a combination...
2 Pages 814 Words

Definition of Safe Sound Level: Analytical Essay

Safe Sound Level Practical Sound are waves produced by vibrations (OpenLearn, 2017). They can travel through solids, liquids and gases. However, the particles move differently in each of these forms. Sound waves travel fastest in solids, followed by liquids, then lastly gases (Oceanservice n.d). The molecules in solids are the most compacted, enabling sound to travel much faster in solids than in liquids or gases (NDT Resource Centre n.d). Sound waves moving through the air are longitudinal waves as they...
3 Pages 1357 Words

Initial Research and Evolution of Atomic Theory: Discursive Essay

In antiquity, philosophers posited a variety of ways in which the physical world is constructed. One such philosophy is that of Atomism, which proposed that the universe was made of indivisible, granular elements: atoms. An early example of a philosopher proposing atomism is Aruni, a Vedic scholar from 8th century BCE India, who theorized that particles too small to be seen mass together into the substances and objects of experience; Aruni suggested that these particles be referred to as kana...
2 Pages 1007 Words

Role of Niels Bohr in Development of Atomic Theory: Analytical Essay

Niels Bohr, who was interested in explaining the spectrum of discrete lines that is observed when light is emitted by different elements. Many models of the atom have been proposed based on experimental data, including J.J. Thomson’s discovery of the electron and Ernest Rutherford’s discovery of the nucleus. Rutherford explained that in an atom, the nucleus is positively charged and surrounded by electrons in his Rutherford Model (negatively charged particles). The electrons follow a predetermined course known as orbits. Rutherford’s...
4 Pages 1602 Words

Use of Different Methods to Define Density: Analytical Essay

Abstract Have you ever wonder why ice cubes floats when mixed with water? or when oil stays at the top of the water instead of mixing together? This goes back to 250 B.C when a Greek mathematician named Archimedes discovered density. Density explains the correlation of mass and volume and also when the object is supposed to rise, sink, or suspend an example is when oil stays at the top of the water that is because the oil is less...
4 Pages 1628 Words

Estimation of Moisture Content and Density of Frozen and Unfrozen Wood Using Near Infrared Spectroscopy

1.0 Introduction Western hemlock is the single most plentiful tree species on the coast of British Columbia and makes up 18% of the volume of BC’s total growing stock. It grows along both the east and west sides of the coast range, from sea level to mid-elevations, as well as in the Interior wet belt west of the Rocky Mountains. It seldom grows in pure stands, and is usually mixed with Douglas-fir, amablis fir, sitka spruce, and western red cedar...
7 Pages 3189 Words

Response of the Insects at Different Wavelength of Light and Photo Systems: Analytical Essay

Abstract: Advance illumination instruments have changed the scenario in distribution and intensity of lighting systems in this world. Development from fluorescent to white LED (light emitting diode) opens the door of illumination, pest control application and eco-friendly lighting. Color sensitivity in UV spectrum plays crucial role in navigation; meet selection, excitation in terrestrial invertebrate animals. This review shows the importance of each wavelength while selecting any lighting system for environmental applications. All major scientific studies are scanned as per the...
6 Pages 2515 Words

Laws of Physics Involved in the Designing and Working of a Rollercoaster: Newton's Laws of Motion

Introduction Since its first opening in Paris on July 8, 1817, the rollercoaster remains to be the prime attraction of every modern theme park. The rollercoaster ride focuses on exposing the riders to a variety of magnitudes of forces, at different times, without compromising on the health and safety of the riders. To give maximum enjoyment whilst ensuring safety, manufacturers have to study and understand the different forces and conditions riders are exposed to while in the ride. This paper...
3 Pages 1581 Words

Review on the Effect of Heat Transfer through Natural Convection in Various Geometry of Heat Sink: Analysis of Driving Force

Abstract: Heat sink are a kind of heat exchanger used as a cooling system for electronic devices due to simplicity, low cost and reliable manufacturing process. The heat sink can be divided into plate fin, pin fin, cross fin, a combination of plate fin and pin fin, perforated plate fin and pin fin and radial heat sink. In the past decades, several published articles have focused on the thermal performance with forced convection. However, only a few publications have focussed...
8 Pages 3422 Words

The Sound Reducing Qualities of Greenery: Analytical Essay

Sound: A Basic Introduction What is Sound? Sound can be described as variations in density and pressure that expand in an elastic medium which could be a gas, liquid or solid body. The precondition for variations in pressure to be defined as sound is furthermore that in addition to the source of the sound and the transmitting medium, there should also be a receiver of the sound. What we humans experience as sound are variations of pressure in the air...
8 Pages 3763 Words

Study of Electronic and Magnetic Properties of Transition Metals: The Basic Idea of the Density Functional Theory

Introduction: The basic idea of the density functional theory started in the nineteen-twenties with the work on the uniform electron gas of Thomas and Fermi [1, 2], who came up with the idea that the energy of a system is given completely in terms of its electron density. However, only in 1964, with the publication of the Hohenberg and Kohn (H-K) theorems [3], and in 1965, with the derivation of the set of mono electronic equations with which one can...
3 Pages 1379 Words

Intelligent Street Light System: Analytical Essay

Abstract – Active street lighting has emerged as an essential factor in strategies for a resource-efficient economy and realization of sustainable growth. In the outdoor area, lights represent approximately 40 % of the total energy consumption at night and have much energy saving potential. If passers-by or vehicles, summarized as traffic elements, are not located near street lamps, it is not energy-efficient to turn them on. The idea is to activate street lights only when they will be used to...
3 Pages 1537 Words

Electron Density Orientation and Mobility of Graphene: Analytical Essay

Abstract Our theoretical interpretation shows that the electron density is condensed at 150°orientation and perhaps the reason for the high mobility of electron in graphene. To determine the above result, the constructed monolayer of graphene contains 40 carbon atoms with 48 bonds in between them and 16 hexagonal polyhedra and the bilayer of graphene has 80 atoms with 96 bonds with 32 polyhedra. The hexagon of carbon lattice has an area of 5.24 Å2. One unit-cell has the volume of...
5 Pages 2483 Words

Light Sensing Using Photodiode: Analytical Essay

Abstract The main aim of the project is to design a circuit which would allow the detection of light by using a photodiode and to critically assess in details how a light sensing circuit using a photodiode works to obtain a desired output. This is achieved by using a transistor Darlington pair, four resistors (2*330, 1k, 4.7k), one LED and a photodiode. In all processes of design all simulations, breadboard design and printed circuit board yielded the results that were...
4 Pages 2037 Words

The Usage Polymers In Heat Exchanging Materials: Analytical Essay

Abstract Polymers represent a good alternative option for current metallic heat exchangers. That is due to their low weight ,cost, and volumetric-thermal-capacity. Polymers also considered as stable anti-corrosive material. Furthermore, fouling is less likely to stick on polymer surface compared to metals. However, polymers thermal conductivity is way less that metals (more than 100 times). Several researches in the literature were dedicated to exploit the properties of polymers by several ways. The solutions reviewed here are: use polymeric coating for...
5 Pages 2346 Words

Analytical Essay on Newton’s Second Law of Motion

Abstract The topic of this paper that I want to specifically talk about is Newton’s Second Law of Motion and how his theory would show how the forms of mass, acceleration, and force would all coexists amongst each other whether that be finding the acceleration of an object on a particular surface or to measure the applied force on the object after each trial in the experiment. The question of this lab experiment is to find that the mathematical equation...
4 Pages 1694 Words

Derivation of Ideal Rocket Equation through Simple Physics Concepts and Formulae: Newton's Laws of Motion

1 Introduction I have always been interested in the physics and math behind rocketry and aviation. Aeronautical engineering is my dream job, making it an obvious idea to do some topic related to the same. Recently, I visited the Kennedy Space Centre where I saw the Saturn V rocket, the rocket that was used for all the Apollo missions. While I was bewildered by its very size and scale, what intrigued me the most was haw much of the mass/...
4 Pages 1807 Words

Speed of Light through Gelatin: Analytical Essay

Introduction What is the speed of light and what affects? This question has been asked for hundreds of years and the answer is simple. The speed of light is approximately 299,792,458 m/s (Las Cumbres Observatory, 2019). This answers the first part of the question, but what about the second part? What affects the speed of light? The purpose of this experiment is going to be answering that question “What affects the speed of light?”. And in particular, does the density...
4 Pages 1897 Words

The History of Chemistry: Analytical Essay on Development of Atomic Theory

In 1700 BC, a king named Hammurabi’s found a metal and recorded it. 1300 hundred years later, Democritus, a philosopher added an atomic theory of Leucippus’s. He stated the impossibility of dividing atoms, being impenetrable, and have about the same density to its volume. Also, atoms are active throughout the human body and that is the cause for human movement. With his philosophy and the atomic theory, he gained and introduced more knowledge with one another. He believed space had...
3 Pages 1355 Words

Sound Absorbing Capability of Dried Alfalfa Hay: Analytical Essay

Noise pollution is an undesirable sound which can interfere with our lifestyle and wildlife, such as sleeping, communication, or disrupt or restrict the best quality lifestyle for us. An environment exposed to noise pollution can be a cause of heart related problems. Studies have shown that high intensity sound cause a substantial rise in blood pressure as noise levels constrict the arteries, interfering the blood flow. The heart rate (the number of heartbeats per minute) also increase. This was evident...
4 Pages 1647 Words

Consequences of Different Approaches to Recording Sound: Analytical Essay

What are the consequences of different approaches to recording sound? Sound can be manipulated by various techniques. In Jack Walker’s seminar, a variety of these techniques were explored such as creative microphone placements, processing and textures. He also discusses the effect of changing the equipment and space when recording. I will discuss a few of his approaches when recording. When recording, Walker uses gain staging in order to avoid Distortion. He illustrates this point by tapping the mic and adjusting...
1 Page 552 Words
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