ENGLISH COURSE “Electricity in our lives” Made by Student Pană Nicolae Alexandru 2nd year‚ group nr. 2 TÂRGOVIŞTE 2010 List of contents 1. Introduction 3 2. Short History 3 3. Definition 4 4. Electricity sources 4 5. Current Electricity 7 6. Electromagnetism 8 7. Uses of electricity 9 8. Generating Stations 10 1. Introduction Electricity means all the
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Ways to save electricity Nowadays many people have electricity‚ but they don’t know how to use it wisely. There is many way to save electricity. We must use electricity wisely. 1. Way is only use electricity when needed. 2. Replace all of your inefficient incandescent light bulbs with energy efficient CFL bulbs. Replace halogen spotlights with much more efficient and longer lasting LED Spotlight. 3. Hang your clothes out to dry rather than using an electric tumble dryer. Ideally use a spin dryer before
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electronic calculators may be used Students MUST answer ALL questions in Section A and any THREE in section B All questions should be answered using standard english DO NOT TURN THIS PAGE UNTIL YO ARE TOLD TO DO SO Section A: Short answer questions. Answer ALL TEN questions. 1. Draw a labeled diagram of an atom 2. Define Current and state its symbol and unit 3. Draw the symbol for a battery 4. List two types of resistors
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I woke up and the bedroom was hot.I guess the power still hasn’t been fixed yet. It drives me crasy with no heating on a bloody winters day in the middle of December! I slowly slip out of bed still clutching my blanket for some warmth. I climb down the ladder and as soon as me feet touch the ground I quickly jump onto the carpet. The floor is like a sheet of frozen ice. No floor heating either. Great! Well‚ at least something can keep me awake in the morning at quarter to six. I’m just about to
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Static Electricity Virtual Lab Name: __________________________ Physical Science Date: ___________________________ Part I: Balloons and Static Electricity: Go to https://phet.colorado.edu/en/simulation/balloons-and-static-electricity 1) Before moving the balloon‚ how many positive and negative signs are on the balloon? 4 positive and 4 negative 2) Use your mouse pad to rub the balloon against the sweater. -What are the charges that are NOW found on the balloon? All the sweaters negative
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high-voltage electricity line in March 17‚ 2000‚ it caused a fire broke in a manufacturing plant. The cause of the main problem was that the production takes place in “clean-room” conditions‚ ten thousand times cleaner than a hospital operating rooms. Fire produces smoke and trigger sprinklers. As a result fire‚ smoke and water had contaminated millions of chips that had been stored for shipment. The subcause is that at first Philips thought that cleanup would take at least a weak but two weeks after
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Hazards of Static Electricity; Lightning Lightning is a massive electrostatic discharge between the electrically charged regions within clouds or between a cloud and the surface of a planet. It is the sudden high-current discharge caused by the atmosphere’s electrical breakdown. Lightning is also one of the most deadly natural phenomena known to man. Lightning is an electric current; thus within a thundercloud up in the sky‚ many small bits of ice (frozen raindrops) collide into each other as
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Life without Electricity In today’s society humankind has become dependent on electricity to be able to live and function. So how would the world be if we couldn’t rely on electricity? There would be no TVs‚ factories‚ cars‚ or even phones. Without electricity we would have to go back to our great great great grandparents’ ways of living. To entertain themselves children would have to learn how to use their imagination. In a world without electricity there would be no video games to play or TVs
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Electricity is a form of energy. Electricity is the flow of electrons. All matter is made up of atoms‚ and an atom has a center‚ called a nucleus. The nucleus contains positively charged particles called protons and uncharged particles called neutrons. The nucleus of an atom is surrounded by negatively charged particles called electrons. The negative charge of an electron is equal to the positive charge of a proton‚ and the number of electrons in an atom is usually equal to the number of protons
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1. How is electricity produced? The most simple way of producing static ekectricity is by rubbing or friction. When you rub two different kind of materials that are insulator‚ you can transfer electrons from one substance to another. Nowadays‚ to create electricity we use battery and generators. Voltage can be made by heart‚ light or mechanical pressure. http://science.howstuffworks.com/electricity-info2.htm 2. Where and how is electricity used? Electricity gives us ability to produce
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