Earth’s Magnetic Field Introduction Earth’s magnetic field is one of the world’s most complicated features. It started to be observed in 1845 by a scientist named Carl Friedman Gauss (Sarfati). The magnetic field is generated inside of the earth’s core and there are many scientists who still debate over how it was first created. There are also many arguments about the many changes that the field has gone through in it’s existence. These arguments are mostly either for a young-earth model or
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Date: 13.10.2012 Student Exploration: Magnetism Vocabulary: attract‚ bar magnet‚ ferromagnetic‚ magnetize‚ North Pole‚ repel‚ South Pole Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. What happens when you place two magnets close together? It depends on the sides when the two North Pole sides are meant then they get pulled together. And if it should be the opposite way then they will move each other away. 2. What objects do magnets stick to? Make a list
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physics of the electromagnetic field‚ a field that exerts a force on particles with the property of electric charge and is reciprocally affected by the presence and motion of such particles. A changing magnetic field produces an electric field (this is the phenomenon of electromagnetic induction‚ the basis of operation for electrical generators‚ induction motors‚ and transformers). Similarly‚ a changing electric field generates a magnetic field. The magnetic field is produced by the motion of electric
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Kevin Choa High 1-E FOOD PRESERVATION EXPERIMENT (INDIVIDUAL OUTPUT) PART A: OVERVIEW (PROBLEMS‚ HYPOTHESIS‚ GOAL/S) For the experiment‚ I choose to preserve a mango because at home‚ most of our mangoes are left unconsumed and rotten since there’s too much of it to eat alongside our meals. To lessen the number of these cases‚ I wanted to still eat them while not having to worry about it spoiling and wasted. The food item we will do for the experiment is a mango preserve. I like the idea
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Electromagnet (Simple Features and Uses) An Investigatory Project Presented to Basic Education Department University of Perpetual Help GMA In Partial Fulfilment for The Requirements in Physics By: Anjanette L. Pascual Coleen Rose S. Saturnino Veverley Jayris M. Ochavo February 26‚ 2010 Mr. Lemuel F. Valdez Teacher Table of Contents I. Introduction A. Scope and Delimitation II. Statement of the Problem III. Definition of Terms IV. Related Studies
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Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A floating leaf oscillates up and down two complete cycles in one second as a water wave passes by. The wave’s wavelength is 10 meters. What is the wave’s speed? A) 2 m/s B) 40 m/s C) 10 m/s D) 20 m/s E) more than 40 m/s 2) The Doppler effect is characteristic of A) light waves. B) sound waves. C) water waves. D) all of the above choices E) none
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is one of several fermented foods prepared and used by early man; and like others‚ wine‚ beer‚ bread‚ and certain foods from milk‚ its discovery predates the earliest historical records. The word “vinegar” is derived from two French words‚ “vin” and “aigre” meaning sour wine‚ but the term is now applied to the product of the acetous fermentation of ethanol from a number of sources. (ConnerHubert‚ 1976). Vinegar has played an important but little-emphasized role as a food adjunct in man’s development
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goddess of agriculture‚ Ceres‚ and refers to the edible grains produced by annual grasses. A grain is a 1-seeded fruit in which the fruit and seed wall are fused together. (The term grain is also used to refer to similar 1-seeded fruits of a few other food plants‚ such as grain amaranths and buckwheat‚ but these are not grasses.) 2 Poaceae (Gramineae) – Grass Family Agrostology – Study of Grasses Gramineae – traditional name for family Ranks: 4th (number of species) 1st (Number of individuals)
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Opportunity cost The true cost of something is what you give up to get it.(This includes not only the money spent in buying (or doing) the something‚ but also the economic benefits (UTILITY) that you did without because you bought (or did) that particular something and thus can no longer buy (or do) something else.) Factors of production The ingredients of economic activity: land‚ labor‚ capital and enterprise. Economic Development The scope of economic development includes the process and
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PHYSICS FOR SCIENTIST AND ENGINEERS LABORATORY EXPERIMENTS EXPERIMENT 5 (Assignment) EXPERIMENT 5 – MAGNETIC FIELDS OBJECTIVES 1. To study the workings of magnetic fields. 2. To determine the North and South poles of magnets and magnetic field lines. 3. To understand the attractive and repulsive forces acting on it. INTRODUCTION Electric current is defined as the rate at which charge flows through a surface. As with all quantities defined as a rate‚ there
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