BASIC ELECTRICITY

ARMY MEDICAL DEPARTMENT CENTER AND SCHOOL SAM HOUSTON TEXAS 78234 6100 ELECTRICITY MD0902 100 subcourse is approved for resident and correspondence course instruction It the current thought of the Academy of Health Sciences and conforms to printed of the Army doctrine as closely as currently possible Development and render such doctrine continuously subject to change MCCS HSN 11TH STREET SUITE 4192 SAM HOUSTON TX 78234 5064 comments or questions regarding enrollment student records or shipments the Nonresident Instruction Branch at DSN 471 5877 commercial 210 221 toll free 1 800 344 2380 fax 210 221 4012 or DSN 471 4012 e mail or write to students whose enrollments remain in good standing may apply to the Instruction Branch for subsequent courses by telephone letter or e mail sure your social security number is on all correspondence sent to the Academy of Sciences OF TRAINING LITERATURE TERMINOLOGY used in this publication words such as he him his and men are intended include both the masculine and feminine genders unless specifically stated otherwise when obvious in context OF CONTENTS INTRODUCTION 1 BASIC ELECTRICITY 1 i COURSE OF US ARMY MEDICAL DEPARTMENT CENTER AND SCHOOL MDO902 ELECTRICITY subcourse is designed to give you a basic knowledge of simple circuits carry electricity from a power source to some kind of electrical equipment With a of these fundamentals you will be able to make better use of electrical and to better understand future textual materials that mention electrical in the function of equipment Components subcourse consists of programmed text 1 Basic Electricity the subcourse lesson and study each lesson carefully are some suggestions that may be helpful to you in completing this Suggestions Awarded furnished by the Nonresident Instruction Branch at Fort Sam Houston Upon successful completion of the examination for this subcourse you will be 3 credit hours Development School Code 555 Instruction Section is found in Chapter 4 of DA Pamphlet 350 59 Army Course Program Catalog The DA PAM is available at the following http www usapa army mil pdffiles p350 59 pdf can enroll by going to the web site http atrrs army mil and enrolling under listing of correspondence courses and subcourses available through the receive credit hours you must be officially enrolled and complete an ii ASSIGNMENT Electricity 1 through 135 completing this lesson you should be able to the correct answers to questions about matter electrical charges conduction potential voltage resistance amperes and OHM text is set up differently from most subcourses is a workbook that utilizes programmed instruction numbered frames present information and or question about presented information You should through the frames in the order presented each question that is presented To check answers go to the shaded box of the NEXT For example the solution to the question in Frame 2 is found in the shaded box of 3 language used in this subcourse was chosen to the lesson easier to understand and may not be precise as definitions and terminology you will learn the future 1 ASSIGNMENT OBJECTIVES 1 order to understand electricity you must know certain about the atom and atomic physics You will learn fundamentals from this subcourse See the on the preceding page TO FRAME 2 2 you can think of is made out of matter air and water are made out of 3 we could look a piece of matter with a very microscope we would see that matter is made of tiny particles called 4 matter is made up of tiny particles called atoms Tiny called make up all matter to Frame 1 question was given in 1 Read and work 2 to Frame 2 to Frame 3 to Frame 4 to Frame 5 to Frame 6 to Frame 7 5 drawing represents a single atom It has two parts to it the center is a Around the nucleus 6 kinds of atoms have more electrons than others but all have two main parts In the center is a Around the nucleus are 7 electrons are said to be negatively charged electrons indicated by arrows are charged 8 electrons above have minus signs inside them because are negatively charged All electrons are said to be 9 Electrons to Frame 8 charged Protons the nucleus of atoms are positively charged particles 10 negatively charged particles are called positively charged particles are called 11 types of atoms mostly in metals have electrons that free to move from one atom to another These electrons called electrons The electrons moving from atom to atom B is a 12 electrons can cannot leave their atom 13 atom that gains electrons is said to be negatively The atom above is gaining electrons It will be charged to Frame 9 to Frame 10 negative positive to Frame 11 electron to Frame 12 to Frame 13 to Frame 14 to Frame 15 to Frame 16 to Frame 17 14 negatively charged atom always has more than protons 15 atom that loses electrons is said to be positively charged atom above will be charged 16 positively charged atom always has more electrons 17 atom with an equal number of electrons and protons has charge Which atom above has no charge A or B 18 here Label here Label here each atom write whether it has no charge is charged or is negatively charged to Frame 18 charge charged charged to Frame 19 charged to Frame 20 ball to Frame 21 19 the atoms that make up mater are negatively charged then matter is also 20 show how matter with like and unlike charges react to other we will use drawings of small lightweight balls pith balls The drawing above shows a from a string 21 pit balls with unlike positive and negative charges are near each other they attract repel each other 22 have heard the expression that attract It or may not be true with people but it is true with As you can see pith