ELECTRICAL CONDUCTORS A conductor is an object or type of material which permits the flow of electric charges in one or more directions. For example‚ a wire is an electrical conductor that can carry electricity along its length. Physics All conductors contain electrical charges‚ which will move when an electric potential difference (measured in volts) is applied across separate points on the material. This flow of charge (measured in amperes) is what is meant by electric current. In most
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“The Domino Effect” Teacher’s Prompt Investigate the domino effect with a set of dominoes. Aim To investigate the relationship between the mass of the dominoes‚ and how it impacts the time taken of the domino effect. Independent Variable: The mass of each domino (12.38 g‚ 32.38 g‚ 42.38 g‚ 62.38 g‚ 82.38 g). Dependent Variable: Time taken of the domino effect. Controlled Variable: The number of dominoes used (8 dominoes)‚ the distance between the dominoes (2 cm)‚ the loads used as the initial
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Science in the Big City: Exploring Career Opportunities in the Natural and Physical Sciences New York City May 13-18‚ 2014 Students in the Natural Sciences at the University of Houston-Downtown are generally accomplished and motivated students with strong interests in science. However‚ students typically have a very limited perception of the science careers available to them outside of medicine. To educate students as to the array of potential careers available in the sciences (not medicine)
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AL Physics Centripetal Force(1ST Lab Report) Objective : To measure the centripetal force by whirling it around a horizontal circle‚ then compare the result with theoretical value FC = m(2r. Apparatus : 1Rubber bung 1Glass tube (About 15 cm long) 1Slotted weights‚ with hanger 12 × 0.02 kg 1Nylon thread 1.5 m 1Paper marker 1Adhesive tape 1Metre rule 1Stop watch 1Safety goggles Set-up: Procedure: 1. Attach one end of a 1.5 m length of nylon thread to a rubber bung and thread
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of semiconductors‚ notably silicon‚ are essential components of most electronic circuits. 1. A semiconductor is a material which has electrical conductivitybetween that of a conductor such as copper and that of an insulatorsuch as glass. semiconductor is a material whose electrical conductivity is between that of a conductor and an insulator. The elements most commonly used in semiconducting devices aresilicon and germanium. A semiconductor is a solid substance that can conduct between an insulator
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DCP CE lab report for thermal physics Jeff Raw data collection: temperature (K)±1K | length (cm)±0.05cm | diameter(cm) ±0.05cm | volume(cm^3) | uncertainty for volume | 342 | 7.3 | 0.28 | 0.449271 | 0.163531 | 338 | 7.0 | 0.28 | 0.430808 | 0.156937 | 336 | 6.7 | 0.28 | 0.412345 | 0.150343 | 334 | 6.3 | 0.28 | 0.387727 | 0.141551 | 331 | 6.1 | 0.28 | 0.375418 | 0.137155 | 329 | 5.9 | 0.28 | 0.36311 | 0.132759 | 326 | 5.5 | 0.28 | 0.338492 | 0.123967 | 325 | 5.4 |
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Independent Assessment Physics Lab (SL): Cantilever Flexion Cherno Okafor Mr. Ebrahimi SPH4U7 October 21st‚ 2012 Introduction Purpose: The purpose of this Physics Lab is to investigate what factors determine the amount of flexion of the cantilever. Hence‚ the objective is to establish a relationship between the length of a cantilever‚ which may give some insight into the physics of cantilevers. Hypothesis: If one increases the length of a cantilever‚ one would expect there to be an
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An experiment to investigate the factors which affect Resistance in a wire What is resistance? A potential difference (V) applied across a wire of length (l)‚ there is in the conductor‚ an electric field (E). In this electric field the free electrons are not however under continuous acceleration (Ee/m). This is because they repeatedly collide with the moderately massive vibrating atoms losing their kinetic energy. The vibrating atoms having gained this kinetic energy now vibrate more. The resulting
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Experiment 5: Relative Density Patrick Erlo Reyes‚ Joseph Winfred Sajul‚ La Reyna Roshele Salenga‚ Luisito Jeremiah Samonte‚ Christine Bernadette Sanchez Department of Biology College of Science‚ University of Santo Tomas España‚ Manila‚ Philippines Abstract This experiment is concerned with the densities of objects. The first activity is determining the density of a cylinder through displacement method and by weighing. The second activity is finding the density of a bone and determining it whether
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Measurement of the distance‚ the thickness and the radius of curvature Purpose : To learn how to use vernier caliper‚ micrometer and spherometer to measure internal and external diameters of a pipe‚the thickness of a copper rods‚ and the radius of curvature of spherical lenses. 1) Vernier caliper: As shown in Fig. 1 the main fixed scale in the vernier caliper has 1 mm gradations while th sliding scale (vernier scale) has 0.05 mm gradations. The smallest division of vernier scale is called
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