Energy

In physics, energy is usually described as the ability of a system to perform work. However, this definition is often challenged because of the many different forms energy can hold. There have been definitions derived which are more suitable to certain contexts. Thermal energy is a more specific energy explored in this investigation process. Thermal energy is one of the types of energy which can be defined by ‘the ability to perform work’. It is the sum of the kinetic and potential energy possessed by an object due to the movement of particles within the object or the system (Simmons, 2014). The thermal energy contained within an object increases as it is heated, this also causes the temperature to increase. The average amount of thermal energy contained by molecules in a substance is known as the temperature of the substance. Temperature is the measurement of the average kinetic energy a substance or object contains. It is directly related to the velocity of the molecules in the substance. There are three ways to measure temperature: Kelvin, Celsius and Fahrenheit; however kelvin and Celsius are most commonly used (Kurtus, 2014). The…

Kinetic and potential energy play an essential role in the segments or phases in a heating or cooling graph representing an exothermic or endothermic process. Kinetic energy is the energy of a system that is in motion of the particles in the system. Potential energy is the energy of a system in which it represents the arrangement of the particles of the system. Kinetic energy and potential energy never increase or decrease at the same time, however, when one energy is changing the other remains…

Energy is key in anything that occurs within our bodies. Energy means the capacity for work. It is the reason we are able to move and to perform normal functions throughout our day. It is especially important for athletes because they are exerting much more energy in a day than a non-athlete. That is why it is even more important for athletes to know what energy does and how to have enough of it. When looking at how energy systems work in the body it is important to first look at the tree main…

Energy is a mysterious and everlasting component which exists within the universe; it is the existential source of power which human beings have harnessed through technology in order to progress and evolve. It is fair to note that energy is quintessential to every action and reaction occurring in the universe at all times. Furthermore, the law of conservation of energy states that energy cannot be created nor destroyed but can be transferred between different forms and states and even between…

Energy can be potential or kinetic. Radiant energy is a form of Kinetic energy. Movement of atoms, molecules, objects, waves, substances referring to a Kinetic energy. There are many different forms of kinetic energies like sound, motion, thermal energy, electrical energy. Nevertheless, there would be no life on Earth without radiant energy. What is radiant energy? The energy of electromagnetic waves and gravitational radiation is radiant energy. Radiant energy is the result of a change in…

Introduction Early man relied on fire for the luxuries of light, heat and cooking. Today, all these luxuries are taken for granted. At the flick of a switch, a push of a button or the turn of a knob, instant power is delivered to us. Mother Nature produces the natural renewable resources that can used to generate electricity and heat such as ocean tides, natural winds and the sun. A variety of these resources are finite including fossil fuels such as coal and oil. For the 21st century, coal, gas…

Energy plays an important part in social and economic develop. As the oil price sharply increases, it stimulates the step of researching the renewable energy field. The advantages of using renewable energy reduce the dependence on fossil fuel resources and carbon emission to the atmosphere. The total incoming solar radiation is about 3.8 million EJ per year and it can satisfy the entire energy demand if utilise correctly [2]. The use of solar energy is usually identified in two contexts: passive…

towards alternative energy. Some are still non-renewable, like nuclear energy, but are much cleaner for the atmosphere than fossil fuels, while most of them are renewable and clean. The most common renewable energies are wind, solar, geothermal, biomass, and hydro energies. Renewable energies produced about 16.6% of the world’s energy in 2010, and this number is expected to rise by 42% of their total in the decade from 2010-2020 (Pazheri et al., 2014). Renewable energies are currently being used…

The human body has three energy systems within it which enable us to move for everyday use, as well as for any other type of movement we need to do. Depending on the type of movement the body does, one of the three energy systems is individually selected to best suite the movement for the particular situation. Different types of exercise training would of course require a a different type of energy system, dependent upon what type of exercising is occurring. Although, no matter what type of…

In this report it will explain whether or not energy drinks do provide energy to the average consumer. Since energy drinks state that it provides a source of energy when consumed. The way energy is made in the body is via Cellular Respiration. During cellular respiration a cell will produce ATP which will then be used in the body as energy. There are three steps during cellular respiration: Glycolysis, the Krebs cycle, and the Electron Transport Chain. During Glycolysis, glucose is broken down…