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Good examples of energy conversions that are familiar to students from their study of the industrial revolution in history like steam engines.

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Energy is present in many forms all around us such as electrical, kinetic, thermal, potential, and various other forms. There is also energy in the process of transfer from one body to another i.e. heat and work. Once energy is transferred it's always designated according to its nature. Therefore, Thermal energy may result from the transfer of heat and work done may take the shape of mechanical energy.

Today, we're discussing energy conversion and all the important aspects related to it.

So, read on!

Energy Conversion

Energy is the fundamental need of our everyday life. So much so, that the quality of life and even its sustenance, is dependent on the availability of energy. Hence, it is imperative for us to have a conceptual understanding of the various sources of energy, the conversion of energy from one form to another and the implications of these conversions.

You must have heard that heard that Energy conversion from one form to another is a well-known phenomenon. The Law of conservation of energy even tells us that the only thing that takes place with energy is the transformation from one form to another. This means that we can convert electrical energy into heat energy and light energy, solar energy can be converted to chemical energy, potential energy can be converted into kinetic energy, Gravitational potential energy can be converted into kinetic energy etc.

Energy Conversion is defined as the process where there is a change in energy from one form to another such as the conversion of nuclear energy into heat energy, the conversion of light energy into heat, thermal energy into work etc.

Types of Energy Conversions

There are various types of energy all around us and these energy sources can be converted from one form to another as explained below:

Light energy can be converted to heat energy.

Electrical energy can be converted to mechanical energy, light energy, heat energy, etc.

Chemical energy can be converted to electrical energy.

Thermal energy can be converted to heat energy.

Mechanical energy can be converted to electrical energy, potential energy, etc.

Nuclear energy can be converted to light energy and heat energy.

The Solar energy can be converted to heat energy, chemical energy, and electrical energy.

The Gravitational potential energy can be converted to kinetic energy.

Some examples of energy conversion are:

A vehicle moving is an example of chemical energy being converted into kinetic energy.

Electricity being produced with water is an example of potential energy being converted into kinetic energy.

A ball from a height towards the ground is an example of potential energy being converted into kinetic energy.

When you boil water using an electric kettle, it's an example of electric energy being converted into heat energy.

These were some of the modern examples of energy conversion. Now, let's take a look at how the energy conversion technology has evolved over the years and how the early humans used energy conversion by harnessing the natural forms of energy.

The Evolution of Energy Conversion

The Use of Fire: The first evidence of energy conversion from the early ages is when the ancient humans discovered the use of fire. They burned dried plant, wood, and animal waste and used the resultant energy for cooking and heating. This was followed by the use of mechanical energy that was used to harness the energy of flowing water and wind. However, this generation of mechanical energy with the invention of simple devices came much later around 2000 years after humans discovered the use of fire.

Waterwheels: The earliest evidence of a machine being used to grind grain is that of a waterwheel, which was later also used to drive sawmills and pumps, driving tilt hammers for forging iron, etc. Waterwheels were the primary means of mechanical power production, rivaled only occasionally by windmills. Therefore, many industrial towns, especially in early America, were set up at locations that assured water flow all year.

Windmills: Apart from waterwheels, windmills were also used as a source of power to replace the animal muscle. Windmills were used in various parts of the world to convert the wind energy into mechanical energy for grinding grain, pumping water, and draining the lowland areas.

Energy Conversion during the Industrial Revolution

Steam Engine: With the rapid growth of the industry around the mid-18th century (and somewhat later in various other countries), there was a pressing need for new sources of motive power, particularly those independent of geographic location and weather conditions. To meet the demands of the industry, the steam engine was developed as the first device for converting thermal energy into mechanical energy.

Newcomen Engine: A few years later, a better and more efficient version of the steam pump which consisted of a cylinder fitted with a piston was developed. Although engines of this kind converted only about one percent of the thermal energy in the steam to mechanical energy, they remained unrivaled for more than 50 years.

Watt's Engine: Subsequently in the later years, the Newcomen engine was modified by adding a separate condenser to make it unnecessary to heat and cool the cylinder with each stroke. Since the cylinder and piston remained at steam temperature while the engine was operating, the fuel costs dropped by about 75 percent.

Later many improvements on the existing technology for energy conversion were carried out which saw the development of many other technologies. Devices such as the Stirling engine, Internal-Combustion engines, Electric generators & motors, Direct-energy conversion devices, and now the renewable energy sources have taken over to meet the dwindling supplies of natural sources of energy.

Conservation of Energy

Lastly, let's understand the law of conservation of energy to further strengthen your fundamentals.

The Conservation of energy is the principle that energy can neither be created nor destroyed. It can only be converted from one form to another or transferred from one object to another. The energy transformation is applicable to all types of energy such as kinetic energy, potential energy, light energy, heat energy, sound energy, nuclear energy, gravitational potential energy etc. These transformations would occur again and again till the time that resource is present there. The friction effect and the air-pressure are the other factors which can affect the transformation to some extent.

Thus, we can safely say that in the whole system, the total energy remains constant but only its transformation takes place.

We hope this page proved useful to you in understanding energy conversion and the various aspects related to it.

Learn all about the types of energy, its uses, properties and forms and the conventional sources of energy.

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Energy Conversion - All You Need To Know and More!

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Energy is present in many forms all around us such as electrical, kinetic, thermal, potential, and various other forms. There is also energy in the process of transfer from one body to another i.e. heat and work. Read here about Energy Conversion.

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sample device

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sample device

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US$2.67 25% The World s Smallest Mini Solar Powered Toy Car Racer Learning & Education from Toys Hobbies and Robot on banggood.com

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Product Detail This cool little solar car needs no batteries, just powered from the sun energy, can directly start the engine in strong sunlight and keep running fast. It is eco-friendly, energy-saving, specially-designed and fashionable, and without doubt, it is a perfect teaching aid for students, is a fun and educational way to learn about solar power.

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One Good Idea is a competition run by the SEAI for secondary school children. The competition is all about inspiring people to make a difference. Groups will come up with one good idea to save energy, tackle climate change or inspire lifestyle changes in the people around them.

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Inspire lifestyle changes to save energy and help tackle climate change. This annual SEAI schools competition is open to primary and post primary schools.

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Promotes Sustainable living and ways to reduce our carbon footprint. ( Students showed website to CSPE teacher who used it to inspire their action project. The students organised a no rubbish day in the school to make students aware of the amount of rubbish we throw into landfills or incinerated each day.)

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Here at the SEAI, we're working with people across Ireland, from homeowners to large industry, to transform how we think about and use energy.

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Planning permission has been granted for a controversial solar farm in West Cork, despite opposition from a local community group.

The Finnis-Mishells Solar Free Valley Group is disappointed at the ruling by An Bord Pleanála to sanction the development of a 13.1-megawatt solar farm at a large site 4km north-west of Bandon.

It had appealed the decision of Cork County Council to give the green light for a 25-year period to the project, which is on a 40-hectare site in the townlands of Finnis and Mishells.

Approval has now been confirmed by the planning appeals authority to allow Dublin-based renewable energy firm BNRG Neoen Holdings to develop the solar farm, which will consist of 40,000 solar panels. The development - which will be one of the largest solar farms in Cork - will cost €13m and provide energy to power the equivalent of 1,750 homes.

Subject to compliance with 10 conditions, An Bord Pleanála said it believes the proposed solar farm will "not seriously injure the amenities of the area" and "would not be prejudicial to public health".

The Finnis-Mishells Solar Free Valley Group's chairman, Michael Walsh, said local people were disappointed that their appeal had been rejected: "We felt common sense would prevail and that the use of prime land would not be allowed happen, when there is an abundance of poor-quality land for such an enterprise and that time will prove us right."

The group claimed the development would turn the picturesque Ballymahane River Valley into "a large-scale industrial zone".

Mr Walsh expressed hope that BNRG Neoen Holdings would take on board comments of the Minister for Communications, Climate Change and the Environment, Richard Bruton, and his predecessor, Denis Naughten, about the importance of solar-farm developers working with communities and giving something back to them, either through subsidised electricity or by providing solar panels for local public buildings, such as schools.

BNRG was founded by David Maguire, a former Environmental Protection Agency official who is also chairman of the Irish Solar Energy Association. It has valued its investment in renewable energy in Ireland at €275m. The company has completed and sold 44 solar farms, worth €230m, in Britain, Northern Ireland, Bulgaria and Greece, while it is also developing new projects in the US and Australia, estimated at €693m.

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Solar farm gets go-ahead in West Cork despite opposition

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Planning permission has been granted for a controversial solar farm in West Cork, despite opposition from a local community group. The Finnis-Mishells Solar Free Valley Group is disappointed at the ruling by An Bord Pleanála to sanction the development of a 13.1-megawatt solar farm at a large site 4km north-west of Bandon.

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Students developed this skill through note taking. Students who struggled with spellings often asked me to spell words. If a difficult or new word came up e.g. kinetic I would ask students to pay attention to the spelling of it. Some students lost marks during their test due to spelling. Words like chlorophyll were unrecognizable. Students were reminded of the value of spellings and literacy after the test due to this.

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Students creativity was examined by the ideas for their devices.

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Communicating was developed during group work activities especially during presentation work and the building of the devices.

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This was incorporated throughout every lesson when learning new information and taking notes in class. The development of this skill was assessed during a summative test.

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key skills managing information and thinking

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This was incorporated during project work and group work activities. Students also developed this skill every night when they had homework to do for the next lesson.

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This was incorporated during project work and group work activities.During my co-operating teachers class this was also incorporated through peer assessment.

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Attached is the key skills for English junior cycle. These are similar to the Science junior cycle. The science key skills contain two more skills those of being numerate and being literate. I found this document more detailed that the poster on the jct science website and gave practical learning outcomes for incorporating the key skills into lessons.

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This paper deals with using computer simulations for practicing dissection. I did not use a virtual dissecting room however I feel the paper deals well with a question I had before beginning placement. How do I effectively incorporate IT in my lessons? I used a virtual simulation called PhET to give students an idea of how they could easily create energy devices.

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JavaScript is disabled on your browser. Please enable JavaScript to use all the features on this page.

Highlights

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A virtual model of the hand and wrist was created from cross-sectional images.

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5 software programs were used to create high detailed 3D models of structures.

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A virtual dissecting room program has been created to simulate a virtual dissection.

Abstract

Introduction

Virtual 3D models are powerful tools for teaching anatomy. At the present day, there are a lot of different digital anatomy models, most of these commercial applications are based on a 3D model of a human body reconstructed from images with a 1 mm intervals. The use of even smaller intervals may result in more details and more realistic appearances of 3D anatomy models. The aim of this study was to create a realistic and highly detailed 3D model of the hand and wrist based on small interval cross-sectional images, suitable for undergraduate and postgraduate teaching purposes with the possibility to perform a virtual dissection in an educational application.

Methods

In 115 transverse cross-sections from a human hand and wrist, segmentation was done by manually delineating 90 different structures. With the use of Amira the segments were imported and a surface model/polygon model was created, followed by smoothening of the surfaces in Mudbox. In 3D Coat software the smoothed polygon models were automatically retopologied into a quadrilaterals formation and a UV map was added. In Mudbox, the textures from 90 structures were depicted in a realistic way by using photos from real tissue and afterwards height maps, gloss and specular maps were created to add more level of detail and realistic lightning on every structure. Unity was used to build a new software program that would support all the extra map features together with a preferred user interface.

Conclusion

A 3D hand model has been created, containing 100 structures (90 at start and 10 extra structures added along the way). The model can be used interactively by changing the transparency, manipulating single or grouped structures and thereby simulating a virtual dissection. This model can be used for a variety of teaching purposes, ranging from undergraduate medical students to residents of hand surgery. Studying the hand and wrist anatomy using this model is cost-effective and not hampered by the limited access to real dissecting facilities.

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The virtual dissecting room: Creating highly detailed anatomy models for educational purposes

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Virtual 3D models are powerful tools for teaching anatomy. At the present day, there are a lot of different digital anatomy models, most of these comm...

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Used as idea stimulation for building devices. Energy is converted from potential to kinetic and heat. Found it a lot safer and more predictable/ dependable than a physical example would be.

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Learn about conservation of energy with a skater gal! Explore different tracks and view the kinetic energy, potential energy and friction as she moves. Build your own tracks, ramps, and jumps for the skater.

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This paper deals with the benefits of using computer simulations when building energy devices rather than physically building them. This paper refers to industry however is relevant to the classroom and in particular PW7. Although I see the benefit of using computer simulations I think that physically making the devices is more beneficial in an educational context.

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Building information modelling based building energy modelling: A review

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The emerging of building information modelling provides opportunities to break through the limitations of conventional building energy modelling such ...

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During my micro teaching I struggled with the concept of "show rather than tell" when relying information to students. This paper helped me to broaden my teaching techniques.

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Science Collaborative Planning Document - interactive

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Verbs included in Physical World Learning Outcome 7:
Design
Build
Test
Describe

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PowerPoint for lesson dealing with PW 7

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" Students should be able to appreciate how scientists work." During my class students worked under time pressure with limited resources when making their devices like real scientists do. Students in my co-operating teachers class were asked to re -evaluate their devices. Scientist often re-evaluate their work.

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Lesson in which students were given the equipment and had to build their own devices. Must more scaffolded approach to the learning outcome. Another one of my co-operating teachers taught this learning outcome. They asked the students to build their devices over the Patrick's Day weekend (5 day weekend). During their next class they presented them to the class. They then went home and during the weekend improved their devices and re-presented them to the class. I think this idea is much more beneficial to the learner.

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Students studied forms of renewable and non renewable energy as part of this unit of learning. As a result their were able to formulate and discuss their own opinions on how the current and future energy needs on Earth can be met. ( Replacing non -renewable energy sources with renewable energy sources. )

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As part of LO PW7 students must design and build an energy conversion device. Planning is required to do this as is the design and conducting of an investigation of the energy conversions taking place when the device is in use. Students were asked to note reliability, accuracy, precision, fairness, safety, ethics and selection of suitable equipment when building their devices.

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Students encountered first half of the Learning Outcome. "Students should be able to review and reflect on skills and thinking used in carrying out investigations." Students were given a list of questions to answer ( Attached to board.) to aid with the reflection process.

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In class we watch the national geographic video of starving polar bears. ( attached to this board.) Students were moved by this video. Questioned followed included: Why do you think you were so moved? What about if I showed you a list of facts instead of a video, would it have been as effective? (Cross curricular links to media studies in English. Examining effect of red top newspaper headlines as sensational to catch readers attention and evoke feeling in the reader.)

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Teachers way use this as intrinsic motivation for students who do not engage with science ordinarily. By discussing issues that may arise students feel more involved in the lesson as it is a familiar topic ( Cross curricular links to cspe citizenship and geography pollution.) Students may build devices to combat ethical and sustainability issues. ( Links to school competitions by the seai and bt young scientist.)

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In my opinion this outcome should be used as a foundation for Physical World 7 to built on. For example if students are able to explain energy conversion and analyse energy conversion processes then they will find it easier to review their own devices in a more critical and beneficial way.

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Learning Outcome seeks to take students knowledge of energy from previous lessons and examine it through construction of an energy device. Students are asked to be away of certain criteria such as the energy conversions during their construction of the devices.

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Youtube Channel full of videos on all things renewable energy. From explaining how renewable sources such as geothermal energy work to  giving viewers tips on how to save the planet one step at a time. Most videos are less than 5 minutes and so this is a great way to get students to think critically about renewable energy outside the classroom.

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"green mountain energy company" "pollution free electricity" "renewable energy provider" "wind face" "green mountain energy" "green mountain" "renewable energy" "wind power" "pollution free" houston dallas "new york city" mcallen electricity

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Green Mountain is the nation's longest serving renewable energy retailer and believes in using wind, sun and water for good. The company was founded in 1997 with the mission to "change the way power is made."

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Polar bears are finding it increasingly more difficult to hunt for food. The increased greenhouse effect is leading to icecaps melting. As a result, sea levels are rising and the distance between ice caps are increasing. This is a video by national geographic highlighting the harsh reality we have created for polar bears.

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Heart-Wrenching Video: Starving Polar Bear on Iceless Land | National Geographic