Physics Essay Examples and Topics

Scientific Theories of Atoms and Their Structure

According to Chang and Goldsby (2014), an atom is defined as, “the basic unit of an element that [participates in] chemical combinations” (p. 31). After many years of experimentation and development of theories by different scientists, it was established that an atom is made up of a positively-charged nucleus, which is surrounded by negatively-charged electrons. […]

Effects of Rubber Modifier on the Epoxy Bond Strength for Carbon Fiber Composite – Concrete

CFRC (Carbon Fiber Reinforced Composites) The research done by Chawla (2010, p. 118) demonstrates the fact that carbon fiber reinforced composite has been very useful in the construction industry. This is because of its two most important characteristics. The first characteristic is the strength it offers to structures. Mallick (2008, p. 87) says that carbon […]

Piezoelectric Nano-biosensor Importance

Introduction Piezoelectric nano-biosensors are designed to operate in the nano-dimensions. They are mainly used to conduct an analysis of various biomaterial samples with the chief objective of understanding bio-compositions, functionalities, and even their structures (Atta 2011). Although different modes of operations are deployed by different biosensors, their central principle of operation is based on the […]

Possible Use of Alternative Energy Sources

Introduction Throughout the century, fossil fuel has been responsible for economic growth in many countries. For example, it has driven economic growth in industrial Britain, the dominant American economy, and the emerging Chinese manufacturing sector (Conserve-Energy-Future 2015). Owing to its tremendous potential in fuelling economic growth, in the past, researchers have linked energy use to […]

Is Renewable Energy a Viable Option?

One of the most critical questions that majorities ask and the main hurdle to renewable energy is whether renewable energy can ever efficiently become a viable energy option relative to the traditional, ready available sources of energy. This question has become relevant as the world continues to face an ever-growing energy and environmental crises due […]

Energy Storage Technologies

Energy can be stored in Lead-Acid (LA), Nickel-Cadmium (NiCd), and Sodium-Sulphur (NaS) large-scale batteries, which function when two electrodes are immersed in an electrolyte to allow a chemical reaction and subsequent production of power. Applications Batteries are used in situations that require short bursts of strong power, portable and rechargeable power, and low steady power […]

Applications of Surface Plasmon Field-enhanced Fluorescence

Introduction Surface plasmon resonance spectroscopy (SPR) represents an optical technique that is widely used in the classification of both thin films and interfaces. The underlying principles that are synonymous with this technique are widely reported in literature. Analyses that benefit from the sensitivity of this technique are those that are regarded to as bio-active in […]

Bonded Wire Strain Gauges

When a piece of conductive metal is under strenuous force, it broadens and decreases in length. If the stresses stay within the elastic limit, then such strip can work as a gauge for measuring physical force. Strain gauge measures stresses from machinery e.g. in aircraft parts (Irwin and Robert 20). Bonded wire strain gauge is […]

Low Voltage Digital Design

Ultra-Low Voltage Ultra low voltage is a concept that has seen processors use less power while at the same time increasing their performance. Most digital circuits in the world today are being designed in such a manner that they can be more energy efficient and thus minimize power consumption. Aggressive voltage supply is one of […]

The Use of 3tesla in Clinical Settings

Introduction The Tesla, whose symbol is T, is an international standard of unit’s derived measure for magnetic flux intensity, commonly denoted as B. In the technical field of magnetic resonance imaging (MRI), Tesla (T) is the measurement unit of computing the power of a magnetic field. Before the usage of the 3 Tesla power systems, […]

An analysis of the global warming phenomenon based on the first law of thermodynamics.

Global warming is among most discussed topics globally. According to the Oracle Think Quest, global warming is caused by the greenhouse effect. The greenhouse effect tries to explain that gases such as carbon dioxide trap energy from the sun. As a result, the earth’s atmosphere behaves like a closed system. However, opponents of this notion […]

Hydrogen Fuel: How Hydrogen Can Be Used to Propel a Vehicle

Abstract Hydrogen is the simplest element with only a single proton in each atom. Hydrogen also makes the most abundant gas in the universe and this makes its new use for propelling vehicles viable. It can be produced through steam reforming or electrolysis. Steam reforming is cheap but releases green house gases, while electrolysis is […]

Nuclear Power — Mega trend

Introduction The developmental milestone of the discovery of nuclear fission in the early 30’s paved way to the advent of nuclear power as a source of energy. Nuclear power is a clean (environmentally friendly) source of energy derived from uranium –a non-renewable mineral source. The global rate of energy consumption is on a direct proportional […]

Nuclear fusion

The sun is known to produce a lot of energy inform of heat and light. The sun produces approximately 4×1026 watts per second. It derives its energy from the fusion of the hydrogen atoms within its core. Fusion occurs when light nuclei such as hydrogen nuclei join together into heavier nuclei, like those of helium. […]

Tensile testing of metallic materials

Introduction When we refer to mechanical properties of materials, whatever crosses the mind is the stress-strain curve. Ideally, both shear stress (σ) and strain (ε) testing are inevitable when it comes to material testing. While shear stress testing correlates an elongation force to the cross sectional area of a material, tensile testing subjects a material […]

Air-conditioning and Heating Systems

Introduction The first question to answer when selecting the most appropriate heating or cooling system is whether to include heating, air conditioning, or both. Although air conditioning is a common need in most places today, this can be effectively addressed by considering design and construction requirements, behavior, and other factors such as dehumidification in humid […]

Power Generation from Radio Wave Technology

Introduction Radio wave technology is the use of airwaves in transmitting and receiving information. It is the foundation of most of our communication in the present day. Radio waves fall under the group of waves termed electromagnetic radiation, which travel at the speed of light (3×108 m/s). These types of waves (including light, infrared, microwaves […]

Can Hot Water Freeze Faster Than Cold Water?

Introduction The phenomenon that hot water freezes faster than cold water had received constant disapproval prior to the year 1969 when a fluke experiment on ice cream echoed the anomaly. An experiment performed by Mpemba, a high school student, confirmed that indeed the phenomenon is true. In a synopsis, in his experiment, Mpemba investigated the […]

Application of Computational Fluid Dynamics to Flow Next to High-Rise Buildings in Hong Kong Due to Air-Conditioner Heat Rejection

The article under consideration is titled “Application of Computational Fluid Dynamics to flow next to high-rise buildings in Hong Kong due to air-conditioner heat rejection”. It is written by Bojic M., Savic S., and Nikolic D. in 2008 in the International Journal of Energy Technology and Policy. This article presents the Computational Fluid Dynamics simulation […]

Fluorescent lights vs. LED light technology

Introduction Fluorescent lights and LED (light-emitting diodes) light technology are technologies of producing devices, which act as sources of light. In modern day technology, a number of items make use of these two technologies. However, it is imperative to note that most of the items are of LED technology such as television remote controls, car […]

The Benefits of Lasers – Principles of Holography

Lasers are useful because they emit a small, monochromatic and uniform light which can make it appropriate for laser applications such as DVDs, medical and laser printers. The major benefit with lasers is that unlike ordinary light emitters, light from lasers never disperse to the external environment. This implies that the light that hits specific […]

Blue Sky and White Clouds

It is undeniable that a blue sky will occasionally have some white clouds and there are some underlying reasons behind this. In this case, people have always wondered why a blue sky contains some white clouds. White clouds will be seen in a blue sky because their water droplets are large enough. This means that […]

Red Eye Effect and Animal Eyes

Red-eye that appears in most flash photos is a common problem today. At the back of the eye, retina reflects flash light emanating from camera. This type of reflection is one of the major causes of red-eye in flash pictures. Additionally, red-eye in photos may appear due to larger surface area provided by iris when […]

Non-Conventional Energy Resources

Introduction In the world, there exist different forms of energy that are categorized into two groups that include the fossil fuels and non-fossil fuels. Technological advancement has played a key role in determining the form of energy a particular country depends on. Developed countries such as the U.S., Japan, Singapore, Malaysia and China among others […]

Cannon vs Aristotle

The scientific revolution experienced during the sixteenth and seventeenth centuries marked a completely new perspective in the approach to several theoretical and methodological approaches. Prior to this scientific revolution, most conventions were based on Aristotelianism, a fact that changed dramatically with the inclusion of scientific experimentation. From that period on, the previously strongly held beliefs […]

Analysis of High Recovery Brackish Water Desalination Processes using Fuel Cells by Rajindar Singh

Background Analysis of High Recovery Brackish Water Desalination Processes using Fuel Cells (2009) was written by Rajindar Singh and details a water desalination technique using fuel cells. The author is the Technical Manager, Industrial Purified Water, Siemens Water Technologies, Colorado Springs, CO, USA. Rajindar Singh Singh has authored and co-authored several articles that mainly touch […]

Large Hadron Collider

The standard model of studying particle physics is surrounded with several issues in the wake of the anticipated entry of the Large Hadron Collider (LHC). Particle physicists are not sure whether LHC will challenge or add to the standard model used to study particle physics presently. Moreover, LHC might explain the some controversial macrocosmic issues […]

Contradictions to the Conservation Law of Energy

Article synthesis The law of conservation of energy is part of the conservation laws that form the core of many, if not all, natural sciences. Even though there are various other laws, the concepts in Physics mainly depend on the concept presented in the law of conservation of energy. This idea came along in the […]

Water Cycle Process

Introduction Water is not stagnant on the earth surface. It evaporates and precipitates back. This process involves absorption of heat by water molecules which leads to breakage of molecular bonds. As a result, water molecules are able to move from the earth surface to the atmosphere through a process known as evaporation. On the reaching […]

Sources of Energy: Nuclear Power and Hydroelectric Power

Introduction The world requires power in order to sustain its energy needs and requirements. The main source of power in the world is the Sun. This source of energy powers all the natural systems in the world. The Sun is the sole source of energy that plants use in the process of photosynthesis in order […]

Experiment of the Fluid Mechanics

The Experiment Sketch The given experiment was conducted to calculate the discharge rate of water with the help of a hydraulic bench. In the course of the experiment, the following tools were used: 1) a hydraulic bench (8 M.M. Get, Equipment No. 1752), 2) a small amount of water; 3) and two rubber caps, with […]

Carbon Fibre Composites

Abstract Carbon fibre composites are most commonly being used for reinforcement, as they provide much stronger durability, lasting wear and reliability. The matrix of the carbon fibre must be used with a type of a bonding agent that will serve as the strengthening element of the resulted product. In the cross section, it adds properties […]

The Common Sense Science

The common sense scientists disprove claims from physics discipline. Albert Einstein laid the foundation for two successful theories that have withstood the taste of time over one hundred years of experimental tests. His theory of annus mirabilis, which deals with quantum mechanics, was explained in the two theories. The string theory and cosmological external inflation […]

OHM’s Law and Circuits

Abstract The purpose is to understand Ohm’s law and simple series circuit that has resistors and diodes. This simple circuit leads to establishment of relationship between voltage, current, and resistance in various devious. Data obtained after performing the experiment are inserted in a graph with a view of deducing whether data fit. To execute this […]

Nuclear Power’ Two Opposing Sides

Introduction The debate on nuclear power has taken different directions due to the disagreements it has created among governments. Today, most regimes have justified their possession of nuclear weapons on basis of self defense or what may be termed as “protection of national security against aggression”. There are many reasons why different nations have remained […]

The Concept of String Theory

String theory is a concept developed by physicists trying to explain the fundamental nature of matter and space. The concept has various interpretations, but has the ability to explain the phenomenon of existence. Since the most fundamental particles do not exhibit the properties of matter that bigger objects have, some scientists consider them non-dimensional (Van […]

Rainbows and Blue Skies

Introduction When we look around, there are many questions one would want to ask. Although most of the answers are found through academic approaches, the truth is that the broadness of this discipline makes it challenging to exhaust every natural phenomenon. Among the many questions asked is the explanation for the color of the sky. […]

Wind and Solar Energy

Introduction There is an urgent need for dependable, efficient and low-cost energy to alleviate problems of energy insecurity as well as environmental pollution. For example, Jacobson and Masters (2001) proposed that the U.S. could meet its Kyoto Protocol obligations for decreasing carbon dioxide discharges by substituting 60% of its coal production plants with wind energy […]

The Photon Definition and Effects

The photon description Basically, a photon may be termed as a quantum, a detached packet of light or an electromagnetic power. This implies that the photon occurs as an electromagnetic force carter, a different kind of electromagnetic radiation and a light quantum. The electromagnetic force effects can simply be observed under the macroscopic and atomic […]

Color and polarized light

To begin with, it is imperative to note that color is derived from the distribution of light particles over a given wavelength which interacts with the observer’s eyes at normal range. The color of an object is associated with its material and the associated source of light that shines over it. It is also based […]

The Interference of Colors

In physics, a new waveform results when two or more waves superimpose on each other, and this development is referred to as interference. This interference, as it applies to waves, is either constructive or destructive, or a combination of both. In constructive interference, “the amplitude of the wave that results is greater than that of […]

The Electromagnetic Spectrum

There are certain components that make the world around a better habitation and beautiful for human beings. One of such components is the light, which enables us to see each other, and it ensures a harmonious coexistence between human beings. It is unimaginable of living in a world devoid of light; such a thing would […]

Multiverse Hypothesis in Physics

In physics matter is regarded as anything that has mass and occupies space. Matter can either be formed from particles of same or different kinds. Elements are those substances that are formed from particles of the same kinds, while compound are formed from particles of different kinds. Compounds and elements are formed of smaller particles […]

Alternate processing methods for xrays(radiography)

Radiographic film processing involves a process where an exposed film is subjected to specific treatment to enable clear visualization of exposed parts to enable identification of abnormalities under scrutiny for an effective and conclusive diagnosis. It is the production of images on a radioactive sensitive material using non-destructive semiconductor failure technique of analysis. This method […]

Pros and cons of nuclear power

Introduction Nuclear power in description is a contained nuclear fission that generates electricity and heat. Nuclear power plants provide about 6% of the world’s energy and 14% of electricity. Nuclear energy is neither green nor sustainable energy because of the life threatening aspect from its wastes and the nuclear plants themselves. Another reason is that […]

Dangers of Nuclear Power

Power is important to human beings as it is used for many purposes. All the sources of energy have their own drawbacks even those considered to be safe. For instance, energy sources like hydropower have their limitations although many people consider them to be safe. However, developing nuclear alternative energy sources such as nuclear energy […]

How maglev trains work

Introduction Maglev trains or magnetic levitation trains were opened up for commercial transport in 1984 when they operated between Birmingham airport and the main railway. Britain was the first country to develop these trains, although other countries developed their sns and used them to transport mainly people. Maglev trains are based on the principle of […]

Different Sources of Energy

Energy can be transformed to a range of states. Energy in different states can be used for various physical works. Energy can be utilized in natural processes or in supplying services to the community. For instance, an inner combustion engine transfers the latent chemical energy present in petrol and oxygen into heat, which is next […]

Ballistics Science

Abstract Ballistic is the science of hurling missiles and involves the study of dynamics and projectiles. But in here mostly we will dwell on the different types of bullets and the damage they cause and particular operations they might be used for. There are three major types of bullets used and these are: frangible bullets, […]

Can you study paranormal scientifically?

Paranormal is an event that occurs when human beings develop perceptions that are beyond scientific explanation. It is an element experienced beyond conventional principles of science (Smith 9). Hence, these perceptions cannot be explained using ordinary scientific concepts. Examples of such phenomena include telepathy, clairvoyance, reincarnation, psychometric, prophecy, levitation, precognition and telekinesis (Smith 20). Indisputably, […]

The Path of Light

It is sometimes very difficult to fathom the real form of light and how it travels. One can not understand fundamental concepts about light if in first place they don’t understand what light is. Light can simply be defined as visible electromagnetic radiations which enables the human eye to see (Burnie 9). The electromagnetic radiations […]

The Formation of Rainbows

The rainbow is one of God’s most adored creations, perhaps due to its multiple colors and unique shape. In most traditional societies the rainbow is used to convey information about the changes in weather. For instance, some African communities believe that if a rainbow appears in cloudy weather, chances of rainfall are narrow. Therefore, this […]

The Role of Lenses in Optics

Lenses (optics) are devices which serve in the transmission or refraction of light as well as diverging and converging of a beam (Harris, 2002). They are illustrated by the curvature of the two optical surfaces (Harris, 2002). There are two main types of lenses, that is, concave lenses and convex lenses. Geometrical optics is also […]

Saving Energy Dollars while Providing an Optimal Learning Environment

This webinar was organized for the needs of school administrators who have to reduce the expenses on the consumption of energy. It was attended by energy managers, engineers, and managers, all of whom shared their views on how school can make energy savings. The findings of this webinar will be particularly useful for educational institutions […]

Color and Light

Introduction How do we see colour? What enables visual perspective? Most people wonder how they experience different colour shades. The exploration of colour and light requires one to understand the concept of waves. Waves have the high and low volts that make up a wavelength. “The length of the wave determines its energy for instance, […]

Reflection and Refraction of Light: Examples – Research Paper

Introduction Light can be regarded as a complex phenomenon due to the fact that it is intangible, and its uses in day-to-day life are innumerable. However, the properties and behaviors of light have been extensively studied by the use of simplified models of light constructed using wave fronts and rays. A wave front can be […]

Rainbow and Its Various Aspects

Introduction A rainbow can be defined as an arch of colors that is usually formed in the sky under certain circumstances. The main cause of the formation of rainbow is the refraction and dispersion of the sun light which occur in the event of rainfall or any other form of moisture that could be present […]

The Concept of Photons

Introduction A photon can be defined as a particle or unit that represents a quantum of electromagnetic radiation for example light. It usually contains energy that is proportional to the radiation frequency. A photon is always in motion with a constant speed of light which is approximately 2.998* 108 m/s whenever there is no form […]

Concept and History of the Lasers Usage

Introduction Laser is a name that is derived from Light Amplification by Stimulated Emission of Radiation. Laser machines usually give out light in that is in form of electromagnetic radiation via a process called optical amplification that uses simulated emitted photons. The emitted lasers contain an elevated level of spatial and temporal coherence that are […]

Should there be a limit to what scientists can discover and create when it relates to the wealfare of humanity?

Introduction When industrial revolution started in England in the period between 18th and 19th century, the aim was to make work easier and increase the agricultural output, the main economic activity by then. However, as time progressed more and more technology was invented which was both beneficial and harmful to the human race. For example, […]

Why Nuclear Energy is Not Good?

Introduction Energy source that is being proposed and used by people in the public, one must always look at safety and economic use. This paper provide thesis argument: nuclear energy is not good. Why nuclear energy is not best alternative Making nuclear plant that would be good for replacing fossil fuels must require many nuclear […]

Energy and Momentum

Introduction This paper presents energy and momentum as applied in the daily life. It is important first to define energy and momentum separately so as to grasp the technical terms used during the discussion of the topic. Relationship between energy and momentum will be drawn with reference to potential and kinetic energy. The analysis will […]

Quantum Teleportation

The most basic constituents of nature have special properties different from the properties exhibited by objects with significant mass. Small bits of information known as qubits can undergo quantum teleportation (Braunstein 609). The physics behind the behavior of qubits, the fundamental units that constitute quantum information, are poorly understood. However, teleportation has been physically demonstrated […]

The Wonders of the Universe

Introduction The universe is a phenomenon that human beings want to understand. There are various explanation, some are religious others are scientific. The religious books explain the universe as accretion of a Supreme Being while science studies the universe by engaging in research and documenting the results. The pioneering scientist like Newton and Einstein coined […]

The Evolution of Electricity

Introduction Electricity is a wide topic used to illustrate the actions of electrons and protons. The subsequent flow of the electrons forms the current we use to energize everything around us. It is important to realize that electricity did not just come to be. Many dedicated men committed and sacrificed themselves to bring electricity to […]