– Electrostatics) [ANSWERS] FV force between the charges in vaccuum = FM force between two charges in medium FV ⇒ Fm = k ⇒ if k increases‚ Fm decreases. Ans 01. Since K= Ans 02. Suppose rod P be negatively charged since it attracts rod R ⇒ R is positively charged since it repels rod Q ⇒ Q is negatively charged. So force between Q and R is attractive in nature. Ans 03. Since F = q E and a = F/m Since charge on proton and electron are same but mass for electron is
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Make a Carrot Battery This activity uses a common carrot and two different metals to make a enough electricity to run a small digital clock. Materials: Two Large Raw Carrots; 2 Pennies; 2 Large Galvanized Nails; 3 pieces of 6" long wire; Small Digital Clock (Tandy (Radio Shack) or Maplin - "Stick-on Timer" £3.50/ $4.99. The digital clock can be extracted from an inexpensive alarm clock or it can be purchased from an electronics store. Slice of about 1 inch from each carrot and discard. Place
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test his hypothesis. In the first experiment‚ he tried to prove his hypothesis using the field of magnetic. There were slits in the tube and there it could measure the electrical charge. He learned that the magnet turned the charge away. In the second experiment‚ he used an electric field to deflect the negative charge. What he thought would be the outcome was actually the outcome and this lead to more research and experiments. In his third experiment‚ he worked at trying to find the nature of
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Thunderstorms Kyle Cowan Known as the electric storm‚ thunderstorms occur all the time. When a thunderstorm starts to occur‚ the air starts to cool as it rises. Cumulus clouds start to form as water vapor starts to condense. As condensation occurs‚ heat (latent heat/energy)‚ starts to release from the atmosphere and assists the thunderstorm in becoming created and grow. Soon as the thunderstorm is formed‚ condensation high in the cloud (now in the form of water droplets or ice) starts
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Electricity was first researched by Thales of Miletos around 600BC. He conducted a few experiments on static electricity in which he believed that friction made amber become magnetized. Other than the fact that people knew that eels produced electric shocks‚ electricity was little more than an intellectual curiosity for over 2000 years. Until 1600 when someone from England discovered the lodestone effect when amber with static would attract small objects towards it. In the 18th century‚ Benjamin
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In this part of Lesson 4‚ we will ponder two questions: * What is the cause and mechanism associated with lightning strikes? * How do lightning rods serve to protect buildings from the devastating affects of a lightning strike? Static Charge Buildup in the Clouds The scientific community has long pondered the cause of lightning strikes. Even today‚ it is the subject of a good deal of scientific research and theorizing. The details of how a cloud becomes statically charged are not completely
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| Resistance and Electric Circuits | Lab 5 | | | The goal of the “Resistance and Electric Circuit” Lab was to determine the resistivity of a conducting wire given two known resistors. The main property of resistivity is that it represents how easily electrons can flow through a material. A Galvanometer is used to measure the current of the circuit and the Wheatstone Bridge is used to measure the resistances and determine the unknown resistance. This experiment also relates Ohm’s Law
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and Study Skills in the Skills and Reference Handbook at the end of your textbook. Atomic Models Scientist Evidence Model Dalton Ratio of masses in compounds Indivisible‚ solid spheres Thomson Deflected beam Negative charges evenly scattered through positively charged mass of matter (plum pudding model) Rutherford Deflection of alpha particles passing through gold foil Positive‚ dense nucleus © Pearson Education‚ Inc.‚ publishing as Pearson Prentice Hall
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Thompson studied conductivity of gases‚ which led him to discover the electron in 1897. Soon after Thompson constructed the first mass spectrometer‚ that’s purpose was to determine the mass to charge ratio of ions. In this instrument‚ ions in discharge tubes were passed into magnetic and electric fields‚ which caused the ions to move through paths. Then‚ the rays were revealed on a photographic plate or fluorescent screen. After Thompson‚ a man named Francis W. Ashton improved this mass spectrometer
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__________________________________ Electric Fields Go to HYPERLINK "http://phet.colorado.edu/simulations/sims.php?sim=Electric_Field_Hockey" http://phet.colorado.edu/simulations/sims.php?sim=Electric_Field_Hockey and click on Run Now. 1. You rub balloons in your hair and then hang them like in the picture below. Explain why you think they move apart and what might affect how far apart they get. When the balloons are rubbing together they are taking charges(electrons ) from one another
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