What are electric cars and how do they help our environment? An electric car is an automobile that is propelled by one or more electric motors‚ using electrical energy stored in rechargeable batteries or another energy storage device. Electric motors give electric cars instant torque‚ creating strong and smooth acceleration. They are also around three times as efficient as cars with an internal combustion engine. The first practical electric cars were produced in the 1880s. Electric cars were popular
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Memorandum To: Whom It May Concern From: Yiying “Rachel” Cao Date: 3/6/2013 Subject: Analysis of who killed the electric car Background The problem In 1990s‚ California was threatened by smog problem‚ and black cloud appeared in the sky. Air pollution problem resulted in the development of lung cancer and associated diseases in people. The gasoline car was one of the main factors that released carbon dioxide to the atmosphere‚ which lead to global warming. Facing the risk of devastation
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Magnetic effect of electric current is one of the major effects of electric current in use‚ without the applications of which we cannot have motors in the existing world. A current carrying conductor creates a magnetic field around it‚ which can be comprehended by using magnetic lines of force or magnetic field lines. The nature of the magnetic field lines around a straight current carrying conductor is concentric circles with centre at the axis of the conductor. The direction of the magnetic field
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Ms. Haynes 2nd Period May 21‚ 2012 Electric Cars There is a big debate about the future of the auto industry. The new big topic is electric cars. Ads emphasize how much less pollution these cars put out‚ but the truth is that many people do not realize the downside of these cars. For instance‚ did you know that average battery cost for electric cars is between $18‚000 and $20‚000? Also‚ these cars produce significant more amounts of sulfur dioxide compared to traditional internal combustion
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Rousselle Molina date submitted: 5/29/13 ELECTRIC FIELD MAPPING I. ABSTRACT: In the Electric Field Mapping‚ we used charged electrodes to create an electric field on a glass tray with a piece of linear graph paper attached to the bottom. We tested several simple electrode positions by moving the probes and drew equipotential lines based on the voltage difference. We then confirmed that the equipotential lines run perpendicular to electric field lines by looking at the experimental data
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produced? Have you ever noticed how your hair stands straight and stiff when you comb it vigorously on a dry‚ cold day? Or how difficult it is to remove dust particles from your comb? Your hair and the comb become charged by rubbing. This stationary electric charge is described as static electricity. Activity 1. Rub a plastic sheet with flannel and then hold the plastic sheet near Styrofoam bits. What do you observe? From the observations made‚ you can conclude that rubbing produces static electricity
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Who Killed the Electric Car? is presented as a whodone- it mystery. Staying true to this genre‚ the film opens with necessary background information‚ describes the crime committed‚ answering all of the what‚ where‚ and when questions‚ and then in the style of Sir Arthur Conan Doyle gathers the suspects for close scrutiny‚ coming to a conclusion on the guilt or innocence of each. Opening with a bit of automotive history that establishes the electric car as a competitive alternative to the
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introduced the EV-1 electric car in California and Arizona. Hundreds of the electric cars were soon on the road. Then they all disappeared. The mystery behind their disappearance is the subject of the documentary "Who Killed the Electric Car?" Electric vehicles had many advantages over their competitors in the early 1900s. They did not have the vibration‚ smell‚ and noise associated with gasoline cars. Changing gears on gasoline cars was the most difficult part of driving‚ while electric vehicles did not
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production side emissions of electric cars with this graph. Here we see the higher amount of emissions per electric car‚ although this can naturally be compensated during the lower emissions during the life-cycle of this car. To note that in case the battery has to be replaced during the life-time of the vehicle‚ the amount will increase to 12‚5t of CO2 per car‚ so more than the double of a gasoline car. 2.2 Source of energy. Here we get to one of the biggest problems of electrics cars: the way we charge
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Mechanism Description of an electric guitar Introduction An electric guitar is a stringed musical instrument played with fingers or a plectrum (pick). It consists of a body‚ a neck and a headstock to which usually six steel strings are attached. The magnetic pickups transform the vibrations of the steel strings into audio signals that are driven through an amplifier. Thus‚ the amplifier is also an essential part of the electric guitar. It was the need of amplified sound
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