Physics Essay Examples and Topics

In certain situations, the accuracy of making direct measurements depends on the tools as well as the reliability of the observer.

As one of the great scientists of the 17th century, Newton published his scientific theories and findings in the Principia, his masterpiece in the realm of science.

A light-emitting diode refers to a light source that is capable of transforming electrical power into visible light. LEDs have been applied as sources of light in visible light communication.

However, the wavelength of the visible form of light is between 0. The UV light has a shorter wavelength than that of the visible light.

Therefore to describe speed it becomes necessary to factor in the amount of time the moving object takes to travel from one place to another as well as the actual distance between the two places.

From the preceding, it is vital to conserve both forms of energy to ensure environmental sustainability because the misuse of energy is the chief cause of pollution.

Contrary to the popular assumption that it is a point if the string theory is true, then it means that it is a point.

Bohr's Theory Although the aforementioned atomic theory by Rutherford was accurate in that it predicted the existence of a dense nucleus in the core of an atom, it still had a few shortcomings.

According to Jain and Lee, debonding of carbon fiber reinforced polymer should be avoided as much as possible if the strength of the structure is to be assured.

In the thickness-shear mode of vibration, the overall frequency of oscillation of AT-cut quartz crystal is described by the equation: F defines the crystal frequency, N is a constant of the material used to make [...]

Research Aim: To identify the factors which are responsible for the threats of dependency on conventional energy sources Research Objective: To demonstrate how the development of alternative energy sources could overcome the rising cost of [...]

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 [...]

Overview Flywheel technology is able to store "energy by accelerating the rotor/flywheel to a very high speed and maintaining the energy in the system as kinetic energy".

The underlying principle adopted in this technique is that a superior electromagnetic field emanating from a surface plasmon is used in the excitation of surface-bound fluorophores.

Bonded wire strain gauge consists of a bendable features and a strain gauge that joins the bendable parts. Bonded wire strain gauge cannot be "detached and used again because of the bond".

In order to ensure that these batteries are effective in improving the performance of the mobile devices, the circuit designs in these batteries are being designed to ensure that they supply more power to the [...]

In the technical field of magnetic resonance imaging, Tesla is the measurement unit of computing the power of a magnetic field.

In addition, this energy must be equal in magnitude to that leaving the earth's atmosphere since the earth is an open system. Therefore, the overall energy in the universe must be equal to the energy [...]

Hydrogen fuel can be used to propel vehicles; this is possible through hydrogen fuel cells, which are capable of powering electric motors that in turn propel the vehicles.

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.

Physicists use the equation E=MC2 to calculate the amount of energy that is generated as a result of the fusion of nucleus.

In simple terms, stress is the ratio of the elongation force to that of the cross sectional area whiles the stress is the ration of extension to that of the original length.

To make the best choice, therefore, a careful examination of the necessary requirements, and not only of the advantages and disadvantages of each type of system and its suitability for the particular environment, is critical.

The history of radio waves as medium for transmitting information started way back in the 1860s when James Clerk Maxwell, a physicist from Scotland, envisaged the existence of the waves.

Project Goals To analyzed the mechanisms fronted in the quest to finding the cause of Mpemba effect. A data on the actual lose in volume of water need to be tabulated for analysis.

The article is presented in the The main idea of the article is to conduct a simulation of the situations when the Window Air-Conditioners reject condenser heat by means of the Computational Fluid Dynamics.

Due to the costly nature of LED light bulbs and other items, the number of shipped LED items is less compared to that of fluorescent lights.

In order for one to see the hologram, it is necessary to shine light that is a replica of the reference beam. In other words, it will not be possible to view an image of [...]

In this case, light is always scattered as time goes by because of the ocean. This is because light moves slowly in dense air that is always the characteristic of the ocean.

This type of reflection is one of the major causes of red-eye in flash pictures. The very light is reflected in the retina to enable night vision.

In the world, there exist different forms of energy that are categorized into two groups that include the fossil fuels and non-fossil fuels.

They had a hypothesis, given their argument, that the heavier the object, the faster it would move towards the center of the universe. That is, there was a degree of regularity given a similarity in [...]

A sketch of the desalination process using a fuel cell is shown below: Fuel cells convert Hydrogen to electricity and this powers the system.

The standard model of studying particle physics is surrounded with several issues in the wake of the anticipated entry of the Large Hadron Collider.

One of the major contributions of the article is a discussion on the various contradictions that the law of conservation of energy has.

On the reaching the atmosphere water molecules bond together again and come back to the earth surface through the process of precipitation.

From Aristotle's perspective, to know the purpose of nature is the most essential task of a philosopher and his strategies should be subjected to this task.

One of the major effects of the electromagnetic fields from the mobile phones in human health is tissue heating. When an individual is using a mobile phone, the skin and other tissues absorbs the heat [...]

The main source of power in the world is the Sun. The Sun is the sole source of energy that plants use in the process of photosynthesis in order to manufacture their food.

The Experiment was going to be carried out in the following manner: Checking the equipment; Charging the hydraulic bench with water; Placing the plastic caps at the end of the shaft; Increasing/decreasing pressure; Observing the [...]

The specifics of the experimentation will be dependent on the area or dimension of the sheet of carbon fibre, the rate at which it will be applied to the bonding surface and also, the different [...]

The common sense scientists define their profession as one that has the ordinary, nonspecialized knowledge of judgment and that it has the ability to judge the work of scientists.

Voltage drop across a resistor in a simple series circuit is usually equal to the voltage supplied into the circuit from the source.

Thus, should possession of nuclear weapons be based on the desired end as to justify the means? It is acceptable to purport that nuclear power may be used if such is meant to promote peace [...]

The effort to understand the seemingly dimensionless nature of fundamental particles and the four dimensional nature of matter and space in one theory has led to development of string theory. The string theory is the [...]

When observed from the side of the container holding the water, it is possible to observe the beam of white light by the blue light, which is scattered.

Fthenakis, Mason and Zweibel also examined the economical, geographical and technical viability of solar power to supplement the energy requirements of the U.S.and concluded that it was possible to substitute the current fossil fuel energy [...]

In this diagram, the electron life cycle shows that when an electron loses energy at point 'a', it leads to the creation of the photon.

The perception of color depends on the sensitivity of its wavelength to the relevant parts of the eye. In spite of the fact that there are varieties of eyes in the animal kingdom, it is [...]

This occurrence is in contrast to destructive interference whereby the amplitude of the resultant wave is lesser than that of the original.

One of the tools used in the separation of lights is the spectrometer and it separates the natural light into the diverse wavelength contained therein.

However, the size of the observable universe is not given in terms of the size of the radius of the observable radius.

However, the processing method is very expensive, and the radiation dose is very high compared to standard processing methods. To add to this, quality of the film produced under the daylight processing is high.

The first pro of nuclear energy is that it emits little pollution to the environment. The next con of nuclear energy is the occurrence of a meltdown.

The external supply of power to the nuclear plant was disrupted by the earthquake. In addition, organization of the nuclear plant was responsible for some problems that were experienced.

It is the force that is created to achieve both goals, to propel the car and levite it vertically at the same time. According to the author, the train is propelled forward after it is [...]

However, while the wind and hydropower are renewable sources of energy, fossil fuels are not renewable. Wind energy and hydropower are some of the alternative sources of energy that have been explored.

Finally the expandable bullets are the type of bullets which upon hitting the target they expand since they are fired under high velocity.

Indisputably, psychologists assert that it is impossible to study phenomena that are related to paranormals. Additionally, it is evident that paranormal phenomena are not constant and they vary in degrees from one individual to another.

The fundamental difference between light waves and other types of waves is in the ability of light waves to travel in a vacuum.

When the rays of sun land on the surface of the earth, they cause the temperatures of the earth to increase, leading to evaporation of water in the water bodies such as rivers and lakes.

Harris proposes that the focal length relates to the concave and convex lenses because it is part of that system, when it is looked at in relation to the focal point, thus defined as the [...]

This webinar was organized for the needs of school administrators who have to reduce the expenses on the consumption of energy.

History in the physics lesson indicates that Isaac Newton was the inventor of light since 1672; he applied the logic of a prism to discover that the prism could split the sunlight to various colours [...]

This paper is an in-depth analysis of the facts surrounding the reflection and refraction of light."Reflection refers to the bouncing of light off a smooth surface"..

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 in [...]

Photons have a wide range of characteristics and the following are just some of them according to the photon theory of light.

This is the case due to the fact that, these properties are the primary determinant of the ability of a laser light to interfere with itself in order to give out the desired interference patterns.

In addition the movement of people and cargo around the world has been improved and safety enhanced due to advances in technology.

Even those who say net production is cost effective for unit of nuclear energy produced may not be saying the truth because most of these estimate forget that nuclear energy is recipient of many government [...]

Ke= mv2/2 From eq taking the negligible potential energy we have E t = Ke = mv2/2 Kinetic energy is therefore related to momentum in the above equation. As mentioned in the literature energy is [...]

This is required so that the change in the state of the particle at the location of the event to be identical to the observed change at the other end.

In his book Hawking while reviewing the writings of the Newton as well as Einstein, he discusses the role of God in the creation of the universe.

In one of her works Diana Bocce observes, "The kite experiment helped Franklin establish a relationship between lightening and electricity, which led to the invention of the lightning rod" This is considered one of the [...]