Physics Essay Examples and Topics

In response to the pulling force, a restoring force is equal to the compression or extension force. In essence, the restoring force is equal and in opposite direction to the force exerted on the elastic [...]

Overall, the aim of the CEN201: Lab Experiment 1 Electric Circuits was: To verify Ohms law experimentally by keeping the voltage constant and varying the resistance.

When considering a frictionless inclined plane, the Mechanical Advantage, which is the ratio of load to effort, increases with decrease in the angle of inclination.

The objective of the experiment is to demonstrate Newton's second law of motion that the acceleration of an object with fixed mass is directly proportional to the net force applied to it.

Distances S0 and Si for two convex lenses in an experiment using the Lens Equation method Focal length is defined as the numerical characteristic that determines the difference between the position point of the lens [...]

Aristotle posited that the universe consists of two parts: the terrestrial and the celestial regions and that in Earth, all bodies were made up of a mixture of four types of matter: earth, water, air, [...]

The main objectives for doing this experiment are: Investigating the use of operational amplifier as an analog comparator Investigating the influence of open-loop characteristics on the circuits in which operational amplifiers are used To measure [...]

From the table above, it is evident that water has a specific latent heat of vaporization of 2260kJ/Kg implying that the any mass of water absorbs heat that is proportional to this ratio.

The motion of a pendulum is a good demonstration of mechanical energy conservation. However, gravity is a conservative force, which is why it does not cause any change to the total mechanical energy of the [...]

The variables in the circuit are chosen to be the node voltages in nodal analysis. Mesh or loop analysis, as contrasted to nodal analysis, deploys Kirchhoff's voltage law to evaluate currents in the circuit.

In other words, a change in the intensity of magnetic flux near a closed circuit results in the induction EMF, which is opposite in direction and equal in magnitude to the flux.

The essence of performing this experiment was to verify the relationship between the effects of force on the extension of a coiled spring and as such, verify the principle behind a spring balance.

In this experiment, the aim was to derive a relationship between the mass and the diameter of clay spheres to obtain the density.

The purpose of the present work was to determine the frequency of the sound wave in the state of resonance. The paper contains calculations of the two frequencies for the two forks and a comparison [...]

Calculate the theoretical shear force at the cut and complete the Table 2. Calculations: Theoretical Shear Force Sc=w*a/L Where L=0.

The amount of kinetic energy in a body is affected by environmental factors and the state of surrounding bodies while potential energy is independent of the surroundings.

The degree of bending is proportional to the refractive index of the medium. In essence, with an incident ray traversing two media with different refractive indices, the incident ray, the normal to the interface separating [...]

A shaft on which the masses are firmly linked and a DC motor to rotate the system made up the bulk of the balancing rig.

This force, which enables an object to rotate, is referred to as a Torque. Torque is therefore defined as the measure of this force F, which enables the object to rotate.

The acceleration of a system is directly proportional to and in the same direction as the net external force acting on the system, and inversely proportional to its mass.

Recoil is the backward momentum of a gun after a bullet has been discharged. On most occasions, this movement of a gun causes discomfort to the shooter since reduces the accuracy of the target.

The benefit of using the KCL and KVL is the ability to calculate closed electrical circuits, including determining branch current and voltage values without the use of instrumental methods of measurement.

As such, a number of components like capacitors and inductors are incorporated in the final sections of the rectification circuit so as to result in a smoother output waveform. This is known as the rectification [...]

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"..

During industrial processes like the dehydration of crude oil, the dissociation of the water molecules from the water-oil mixture is an essential requirement of a coalescer.

Friction is mainly depended on the nature of the surfaces and not the area of contact between the surfaces. The objectives of this experiment is to verify the laws of friction, the different types of [...]

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 [...]

In this laboratory work, the dependence of the centripetal force on the radius, the mass of the sample, and the angular velocity at which the sample rotates around the vertical axis are studied.

The tool that provides the means to conduct a pulse height analysis of incoming linear signals as well as conduct a series of counting experiments in one run is known as a multichannel analyzer.

The movement of electric charge past the head's coil leads to the formation of magnetic fields on the surface of the tape.

The cooling curves of the pure compounds and various mixtures were used to construct a solid-liquid phase diagram of the biphenyl and naphthalene systems.

The purpose of this experiment is to verify the principle that the resistance of a conductor is directly proportional to its length by using Ohm's law.

The stress at the end of the experiment gave the breaking strength and was 504. The stress-strain curve was re-plotted in the range of 0 to 1% strain to calculate Young's modulus and 0.

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

Thus, the direction of the torque with respect to the point is essential and shows the ability of the body to rotate in the direction of the resultant vector.

The anatomical forces of the player are also a significant part of the game and have an effect on the ball's movement and whether it reaches and knocks the pins.

In the year 1911, Earnest Rutherford discovered the proton, the particles that make up the nucleus and most of the mass of an atom.

According to this law, the pressure of a gas is inversely proportional to volume in a closed system if the temperature is kept constant.

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.

There is scantly information about the origin and history of winches, but the earliest records by Herodotus of Halicarnassus indicate that wooden winches dominated the architectural form as was referenced by Aristotle and might have [...]

The objective of this experiment is to ascertain that when bodies are involved in an elastic collision, both the energy and the momentum are conserved unlike in a perfectly inelastic collision where only the momentum [...]

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 [...]

To investigate the differences between an open loop and closed loop motor speed control in the presence of mechanical load. U-151 Dual attenuator U-152 Summing amplifier U-153 Pre-amplifier U-154 Motor driver amplifier U-155 Tacho amplifier [...]

Furthermore, the cosmic microwave background supports the Big Bang theory and states that with the help of this background, it becomes possible to see the past via the speed of light.

This guide describes how to set up and perform experiments related to the deflections and reactions of a rectangular portal. The Frame Deflections and Reactions experiment fits into a Test Frame.

The equilibrium state of the three forces was determined by placing the ring connected to the three pulleys at the center of the Force Table.

Obviously, for normal functionality of such a device, it is necessary to ensure that a stable voltage is supplied to the sensor, which means that the circuit must be able to transform the AC voltage [...]

To determine an experimental value of the permeability of free space o To investigate the balancing of repulsive magnetic between two wires with antiparallel currents by using a known gravitational force The setup for the [...]

The purpose of the present laboratory work was to determine the nature of the relationships between the various variables describing the state of a gas using the ideal gas equation.

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.

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 [...]

Table 1: Raw data from four measurements For each of the four tests, it was necessary to determine the instantaneous values of time and velocity.

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.

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

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 [...]

Therefore, substantial research has been done in the literature on the Torsion of prismatic bars with solid, closed, and open cross-sections.

The specific heat of a matter is a measure of its ability to absorb or release heat and its ability to change state.

According to Putman, the principles of moments states that "the moment of any force is equal to the algebraic sum of the moments of the components of that force".

The aim of this experiment is to ascertain that when three non-parallel forces are in equilibrium, their magnitudes can be derived from the directions of their lines of actions using triangle of forces method or [...]

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

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

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 [...]

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.

As force acts on an object in motion, its acceleration and direction of force act towards the center of the circular path.

To study Hooke's Law on the example of a small spring. To study Archimedes' Principle using the example of deformation in a vertical spring.

Knowing that momentum is a product of mass and velocity of an object, the law can be depicted in the following formula: Where: m = mass before collision v = velocity before collision m' = [...]

According to Pratidhina et al, the displacement of such a system undergoing simple harmonic motion can be expressed as a function of time, as given by the following equation.

Moreover, the intensity of heat is determined by how fast the atoms are moving in the object, the fast the movement the higher the heat and the lower the movement the lower the heat.

The study of the evolution of the universe is fundamental to understanding the driving forces behind the emergence of life. The controlled variables are the use of the same balloon, the composition of the gas [...]

The best illustration of the adiabatic process is in the form of the equation PVn = constant where p corresponds to the pressure, v corresponds to the volume and n is the polytropic coefficient, which [...]

To analyze the frequency response of R-L and R-C circuit networks. To observe the current and voltage waveforms and analyze the effect of L and C on such waveforms.

The friction between the road surface and the tyre makes it possible for the car to move forward when the gas pedal is pressed. Gravity is the force that causes the bucket to fall into [...]

The project begins with a research into solar energy particularly the photovoltaic cell, its historical development, and the behavior and modular design and construction of the PV cell.it goes further to detail on alternative devices [...]

Is to forecast the bending moment diagram, collapse load, the number, and the position at which plastic hinges for the portal are formed To compare the predicted values with the experimental values found from [...]

The year 1829 marks the time when Gaspard Coriolis came up with the definition of 'kinetic energy' the development that was followed by the introduction of the term 'potential energy' by William Rankine in 1835. [...]

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

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

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.

Cyclists would use at least 250 kWh per hour of energy walking, which is about 70% more efficient than the energy required for a car.

From the analysis, the effective mass of the spring was 0. The effective mass of the spring was 0.

Further developments in the field of energy use began with the sources such as wind, biomass, and hydropower and these were the only sources of energy for humans for thousands of years.

Superstring theory is one of the theories that offered or opened the door to clear many of the misgivings the scientists have regarding the universe.

This paper discusses Alfred Nobel's work with explosives for military and industrial use leading to his contribution to the world of the Nobel Peace Prize. As such, Nobel had to come up with a way [...]

Some people believe it is the reflection of the oceans' color while others believe it is the reflection of the blue portion of the light from the sun that is reflected on the surface of [...]

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 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 [...]

Generally, an increase in force should lead to a rise in kinetic energy since the higher the force, the greater the change in motion.

The error of the eye could also result in this uncertainty. The result achieved is what was expected in this lab practical.

The main goal of this lab investigation was to use practical logic circuits to validate DeMorgan's law and the Distributive Law and learn about CMOS devices' characteristics.

Over the past 30 years, the extraction of copper ore and the use of refined copper around the world has increased dramatically.

The conical pendulum moves at a constant spend in a circular horizontal plane and when the bob is attached to a string, it forms a cone and so it is used to illustrate uniform circular [...]

In the second line, the energy is accumulated in the magnetic field of an inductive current-carrying circuit and delivered to a load using an opening switch.

In fact, the application of the quantum effect in daily life events has made various people develop an interest in the study of physics.

The reference beam is represented by the electric field as One of the distinct properties of a hologram is that the hologram gets light from each part of the object in the setting.

One of the sides of the thermoelectric cooler junction absorbs heat energy when the electric current is passed while the other side dissipates energy in form of heat.

A fiber-optic system will consist of a transmitting device that generates a light signal, an optical fiber cable that acts as the medium for carrying the light, and a receiver on the other end to [...]

Why do you think during the reaction some intermediate colors are seen? Present the evidences that help you identify the AuNP solution.

However, it is easier in uplifting a load with a single fixed pulley because the pulley enables one to pull the load towards the gravitational acceleration, rather than against it like in the case when [...]

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.

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

This process is called energy conversion, and it is one of the most important concepts in understanding energy. An example of energy conversion in daily activities is the shift from electric energy to heat in [...]

In fact, in the diffraction of any waves, including light waves, visual observation of the envelope of obstacles by waves is possible only if the dimensions of these obstacles are comparable with the dimensions of [...]

Measurement of mechanical properties of the strain to fracture, the tensile strength, the yield stress, and the elasticity provided information on their plasticity and fracture.

The author is excited about the experiment and provides a thorough understanding of the subject without the use of equations that makes the understanding of the activities easier for the general population.

In Figure 1, the osmotic pressure is the pressure that needs to be applied to the left water column to stop further flow of the solvent into the solution.

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 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 [...]

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.

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.

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.

From this data, the dependence of the wavelength on the root of the tension is plotted to determine the slope factor; this factor can be used to calculate the frequency of the wave indirectly.

The purpose of this work is to study the relationship between the velocity of a falling object and the time during which it falls.

The difference between the initial and final values of the position of the lower end of the spring corresponds to the vertical displacement, that is, it shows how much the given weight was able to [...]

The theoretical basis of this investigation was evaluating the sum of the voltage drops throughout various closed connections, which is equal to zero.

Newton stated that everybody in the Universe affects all others "with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers".

For example, if when a wave propagates in a medium, the displacement of its particles occurs in the direction of the wave itself, it is commonly referred to as a longitudinal wave.

He observes that space and time have remained to be the most mysterious of the concepts of the universe. The fundamental assumption of the theory is that the universe was initially very hot and in [...]

A graph of V against r^2 was plotted for this case to determine e/m for comparison to the first setup and the theoretical one.

Introduction The outdoor playing environment forms a very fascinating experience for physicists since it presents a first-hand understanding of the basic principles behind physics. One such playing activity of interest is playing on a trapeze. Akin to a playing ground swing, the trapeze operates under the principles of driving a simple pendulum. A trapeze and […]

Both wings fixed on Formula One cars have abilities to generate almost 70 percent of the total down force needed. This role makes the wings necessary parts of Formula One cars.