Work And Energy Essay

698 words - 3 pages

First discuss how energy can be converted from one form to another, giving specific examples.
All forms of energy can be converted to another form of. For example: “A pendulum is an object, called a bob, suspended by a string or wire for support. If the bob is moved to one side and then released, it will swing back and forth in an arc. At that moment the bob reaches the top of its swing, it stops for an instant, then begins another swing. At that instant of stopping, the bob has 100 percent potential energy and no kinetic energy. As the bob starts back down through the swing, it is gaining kinetic energy and losing potential energy. At the instant the bob is at the bottom of the swing, it ...view middle of the document...

Moving Water
Moving Water is considered to be a renewable energy source, unlimited as long as it rains. Moving water has been an energy source for thousands of years. Hydroelectric plants generate about 3 percent of the United States’ total energy consumption at about 2,400 power-generating damns across the nation. Hydropower furnished about 40 percent of the United States electric power in 1940. Today, dams furnished 9 percent of the electric power. Energy consumption has increased, but hydropower production has not kept pace because geography limits the number of sites that can be built. (Integrated Science, pg. 67)
Water from a reservoir is conducted through large pipes called penstocks to a powerhouse, where it is directed against turbine blades that turn a shaft on an electric generator. (Integrated Science, pg. 67)
Nuclear
Nuclear energy is the form of energy from reactions involving the nucleus, the innermost part of an atom. Nuclear power plants have been using nuclear energy to produce electricity for centuries. Energy is released as the nuclei of uranium and plutonium atoms split, or undergo fission. The fissioning takes...

Other assignments on Work And Energy

To Drill Or Not To Drill

383 words - 2 pages gradually clean up pollution and also save millions of dollars in the future. Renewable sources of energy vary widely in their cost-effectiveness and in their availability across the United States. Their cost comes in collecting, harnessing, and transporting the energy so that it can do useful work. The price of electricity will increase which will cause citizens to spend thousands of dollars on electricity because of the rising cost of oil

Alternative Energy Essay

1334 words - 6 pages clogged cities and motorways, and also provide the next generation of reusable batteries. Finally, the immense power of the sun would create boundless energy with improved photovoltaic cells. Replacing the foundation on which society has been built is guaranteed to be a challenge, but the advancements in technology and energy independence are well worth it. Work Cited Chen, C. (2011). Physics of solar energy. Hoboken, N.J.: John Wiley & Sons

Tidal Power

404 words - 2 pages generate electricity. How does it work? * Tidal Energy works more like hydro-electric scheme, except the dam is much more bigger. * A huge dam called a “barrage” is built across a rive estuary, and when the tide goes in and out, the water flow’s through tunnels in the dam. Advantages: * Once you’ve built it, tidal power is free * It produces no greenhouse gases or other water * It needs no fuel * It produces electricity

Energy In Saudi Arabia

1654 words - 7 pages | References | 12 | Introduction Saudi Arabia is the world's top oil exporter and producer. Saudi Arabia's economy is petroleum-based; Oil actually accounts for 90% of the country's exports and nearly 75% government revenues. Oil is also the major source of energy in Saudi Arabia. A lot of energy is used to desalinate water. Water is scarce in a country that is surrounded by sea from East and West. Desalination consumes a lot of energy, although

Nuclear Energy

2856 words - 12 pages radioactive material to do useful work. It occurs in nuclear power plants through a process called nuclear fission. Fission is basically attacking the nucleus of an atom with neutrons causing the nucleus to split and releasing energy. Fission that is performed on radioactive materials, such as uranium, creates a greater amount of heat that can be used as energy. The typical life span of uranium is that it’s mined and is converted into a compact form

3 Day Nutrition Analysis

258 words - 2 pages order to incorporate all muscle groups and cardiovascular exercise. What types and amounts of exercise would work best for you? Among the exercises listed the ones that would work best for me would be walking, jogging, and playing sports. Also weightlifting and aerobic exercise would help to expend energy and burn calories. Riding a bike could also be an option as this could be enjoyed by the whole family. Can the activities be performed year

Informative Speech

891 words - 4 pages done research on the internet. E. Preview of Main Points: 1. First, I will discuss the nuclear power itself. 2. Second, I will discuss the process of nuclear power and how it’s work. 3. Next, I will discuss the advantage of nuclear power. 4. Finally, I will discuss the conclusion. II. Body. A. Nuclear power is an electric or motive power generated by a nuclear reactor. 1. Also known as nuclear energy. 2. Nuclear

Ge Wind Strategy Case Study

4576 words - 19 pages manufacturing and related services like installation, operation and maintenance (O&M). 2) The data for value chain analysis is based onshore wind power on European Wind industry. GE Wind is a branch of GE Energy, a subsidiary of General Electric. The company manufactures sells wind turbines and wind service solutions to the global market (Wikipedia, 2013). In 2012, GE Wind was a number 1 largest wind turbine manufacture in the world. “Today’s

Ecosystem

2121 words - 9 pages Preservation, Conservation, and Sustainability of the Mississippi River SCI 256 July 27, 2013 Introduction The Mississippi River, especially the upper region, is one of the most complex ecosystems on Earth. It is home to numerous species of mammals, reptiles, amphibians, and fish. Since 1927, people have been working to preserve, conserve, and sustain the Mississippi's rich resources and harness its power and energy. However, many

Essay1

529 words - 3 pages experiences where I have dedicated my time and energy into a company only to be taken advantage of and not be given credit or appreciation. A company that is a flat structured organization and gives back through corporate social responsibility creates a personal sense of pride in my personal and career–it motivates me to work harder and creates more of a connection to the company. In the last five years of school I have been able to reflect on

Agriculture

2461 words - 10 pages compare different types of energy. Dayrates: Oil and gas drillers usually charge oil producers on a daily work rate. These rates vary depending on the location, the type of rig and the market conditions. There are plenty of research firms that publish this information. Higher dayrates are great for drilling companies, but for refiners and distribution companies this means lower margins unless energy prices are rising at the same rate. Meterage

Similar Documents

Energy Essay

891 words - 4 pages Energy Agnese Strayer University Dr. Andrey R. Pavlov Science 110 April 21, 2012 We recognize energy through the concepts of force and motion. When work is done on an object, it gains energy. Energy is made of two types, potential energy which is stored energy and kinetic energy which consists of moving energy. Food is stored energy. It is stored as a chemical with potential energy. When your body uses that stored energy to do work

Unit 5, P4, M1, D1 Essay

766 words - 4 pages Energy keeps all living organisms alive, as they need a continual supply of energy to function in order to survive. Some of these processes are continuous such as, metabolism, which is the chemical reactions which occur in the body, these occur by using or releasing energy from chemical substances. Another continuous process which use energy is the transporting of molecules in order for them to break down, and to build new ones. The breakdown of

The Biggest Problems In Health Care Today

1827 words - 8 pages method of harnessing the sun's energy. Photovoltaic panels are the devices that convert light energy into electrical energy with no noise, pollution or moving parts, making them robust, reliable and long lasting. The whole energy system built on solar-driven power will continue to work as long as the sun is producing energy (that is, according to scientist, billions of years). Sustainability of solar energy makes it the first choice for

Music Essay

891 words - 4 pages transfer diagrams.Explain instances of energy transfer by waves and objects in everyday activities (e.g., why the ground gets warm during the day, how you hear a distant sound, why it hurts when you are hit by a baseball).  Explain why work has a more precise scientific meaning than the meaning of work in everyday language. Calculate the amount of work done on an object that is moved from one position to another. Using the formula for work, derive a