(a)Ferromagnetic materials: Ferromagnetic materials have a large‚ positive susceptibility to an external magnetic field. They exhibit a strong attraction to magnetic fields and are able to retain their magnetic properties after the external field has been removed. Ferromagnetic materials have some unpaired electrons so their atoms have a net magnetic moment. They get their strong magnetic properties due to the presence of magnetic domains. In these domains‚ large numbers of atom’s moments (1012
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Kevin Williams Project 1 The use of electricity and magnetism in transportation When Benjamin Franklin discovered electricity‚ it was probably one of the biggest discoveries known to mankind. Even though our dependence of electricity is a lot‚ however at the same time it’s easy to forget how dependent we actually are on it. Electricity always has and always will play a huge part in our everyday life. It’s hard to imagine humanity without it. When it comes to transportation‚ it is going to rewrite
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Physics Lab Report: Magnetism Aim: To compare the ratio of the magnetic length‚ the geometric length and magnetic field strength of different shaped magnets. Materials: * A Bar Magnet * A Horse Shoe Shaped Magnet * A Cylindrical Magnet * A Compass * Pencil * Ruler * A Wooden Board * 4 Needles * A bunch of Needles/pins * A3 Size paper Procedure: 1. We took a wooden board and 4 needles‚ which we hammered to the 4 corners of the board. 2. We
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Electricity and magnetism are two different aspects of one force. This force is called the electromagnetic force. Electricity can be generated by rotating coils of wire in the vicinity of a magnet. When a force moves objects toward and away from each other it is called electricity. When it comes to magnets‚ Earth and other planets behave like giant magnets. The first know magnets were iron materials. If one piece of the iron was placed in contact with the other‚ it attracted it. In ancient times
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I’m hoping to investigate how magnetism works through different types of substances. I chose two unique substances to test magnetism through: slime and wood. I hypothesize that magnets can still work through slime and that they can work through wood‚ but I hypothesize that they can’t work through both‚ because the magnetic field will be blocked too much. I designed five different set-ups to test how the magnets react in different ways using these materials. The results of the experiment proved four
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Student Exploration Circuits Vocabulary ammeter‚ circuit‚ current‚ electron‚ ohmmeter‚ Ohms law‚ parallel circuit‚ resistance‚ resistor‚ series circuit‚ voltage Prior Knowledge Questions (Do these BEFORE using the Gizmo.) Strings of holiday lights can be designed in one of two ways. In some strings of lights‚ each light is connected to the others along a single wire (in series). In others‚ each light is attached to its own wire (in parallel). Suppose a single light bulb burns out. How do you think
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What is Magnetism? Properties of Magnets: Magnet: any material that attracts iron and materials that contain iron Magnets attract iron and materials that contain iron. magnets attract or repel other magnets. In addition‚ one part of a magnet will always point north when allowed to swing freely. Magnetic Poles: Magnetic Pole: any magnet with 2 ends‚ each is called a magnetic pole. Magnetic poles that are unlike attract each other and magnetic poles that are alike repel each other. Magnetic
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have magnetic properties. Note that not all metals are magnetic and magnetism is not a method to separate metals from non-metals. Gold‚ silver and mercury are examples of non-metal substances. Magnetism is however a way to separate magnetic substances from non-magnetic substances is. Magnetism as a separation method is done by taking any magnetic force (Electro magnets included) and moving it above an insoluble substance. Magnetism is only effective in insoluble substances. Examples of magnetic separation
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Induction cooktops heat the pan only. Photo courtesy of Consumer Guide Products KITCHEN APPLIANCES Microwaves Nonstick Cookware PlanetGreen.com: Are you a green appliance guru? Do you crave the simplicity and rapid heating of electric stoves but long for more responsive temperature control? Perhaps your favorite TV chef has won you over to cooking with gas‚ but the thought of tearing up your kitchen to put in a gas line leaves you cold. Maybe you have a gas stove‚ but wish
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This report will be done on the theory of Electromagnetism. Electromagnetism is the force that combines electricity and magnetism. Electromagnetism is found in everyday things that shape our lives. It is the cleanest force used to make energy today‚ and it is used in almost every home appliance that is in a standard middle classed home. The E-M force is the most commonly under looked force that helps us live. Without Electromagnetism‚ we would be falling through floors‚ literally! E-M force can be
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