right materials and the right general idea. One afternoon Hans Christian Oersted was attempting to demonstrate to his students that moving charges did not make a magnetic field. Oersted had planned to demonstrate this by showing the heating of a wire by an electric current. He also wanted to demonstrate magnetism. In order to do this‚ he provided a compass needle mounted on a wooden stand. Oersted noticed that every time the
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CHEM 1105 Experiment 4: Determination of a Chemical Formula Introduction When atoms of one element combine with those of another‚ the combining ratio is typically an integer or a simple fraction. The simplest formula of a compound expresses that atom ratio. When two or more elements are present in a compound‚ the formula still indicates the atom ratio. To find the formula of a compound we need to find the mass of each of the elements in a weighed sample of that compound. For example‚
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positive and negative end‚ not the wall outlet. DC motors can be found in objects such as cordless drills or battery operated remote control cars. I will also be testing shape memory alloy (muscle wire) and a pneumatic system. Muscle wire and pneumatics are a bit more complex. Muscle wire is a thin wire usually made of a nickel-titanium alloy that morphs into a preprogrammed shape when introduced to heat or electricity. The pneumatic system I’m using uses pressurized air to push a piston out of an
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two physicists in 1831 - Michael Faraday of England and Joseph Henry of the United States. Faraday and Henry found that they could produce electricity in a coil of copper wire by moving the coil near a magnet. This process is called electromagnetic induction. A simple generator (see Figure 1 below) consists of a single loop of wire turning in a magnetic field. Electricity is produced only while the loop is rotating. As the loop rotates‚ the two sides "cut" the magnetic lines of force. This induces
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Volume of solutions (100mL)‚ Concentration of ZnSo4 (0.1 mol)‚ Concentration KNO3 (1 mol)‚ Type of filterpaper‚ Mass of zinc and copper electrode APPARATUS • Digital Voltmeter • 2 beakers 100mL • 2 Conductivity Cups • Filterpaper • Wires 2x • Crocodile clips 2x • 100mL of 0.1 mol ZnSo4 Solution • 100mL of CuSo4 Solution with the following concentrations - 0.1 mol - 0.3 mol - 0.5 mol - 1 mol - 2 mol • 1 mol of KNO3 Solution • Zn strip 5x • Cu strip 5x • Thermometer •
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If you are looking for instructions about building a lemon battery to light an LED‚ see Lemon Battery at Wikibooks. The lemon battery is a simple type of electrical battery that is commonly made for school science projects because it illustrates a battery’s main components. Typically‚ a piece of zinc metal and a piece of copper metal are inserted into a lemon. Everyday objects such as galvanized nails and copper pennies can be used for the zinc and for the copper. A single lemon is usually studied
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go back to its natural form. It became a big crystal. Naphthalene ball dissolve by means of air. It evaporates. Copper wire with Nitric Acid Objective: In this experiment‚ we’re going to find what will happen if we put the piece of copper wire in the Nitric Acid. And what type of reaction will occur. Materials: Test tube Graduated Cylinder Test tube rack Copper wire Beaker Nitric Acid Test tube holder Observation: 1. The color of the Nitric Acid is similar in the color of the
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Republic of the Philippines DEPARTMENT OF EDUCATION K to 12 Basic Education Curriculum Technology and Livelihood Education Learning Module ELECTRICAL INSTALLATION AND MAINTENANCE EXPLORATORY COURSE Grades 7 and Grade 8 TABLE OF CONTENTS What Is This Module About ? ................................................................................... 2 How Do You Use This Module ............................................................................... 4 LESSON 1 – Prepare Electrical
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(ECD) and Electrochemical grinding (ECG) Classification of non traditional machining processes 3. Thermal - Thermal energy applied to small portion of work surface‚ removing by fusion and/or vaporization – Electric Discharge Machining (EDM)‚ Wire EDM‚ Electron Beam‚ Laser Beam‚ Arc Cutting 4. Chemical - chemical etchants selectively - using a mask - remove a portion of a
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necessary for the soldering of the alligator clips to the wire and when taking apart the battery. Dispose of the potatoes after the experiment; do not eat them. Materials 12 fresh baking potatoes 24 alligator clips 1.5 m copper bell wire 12 hot-galvanized (not electro- galvanized) 11⁄? 2-in. zinc roofing nails 12 solid-brass wood screws wire cutters solder‚ flux‚ and soldering iron
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