\documentclass[10pt,a4paper]{article} % Packages \usepackage{fancyhdr} % For header and footer \usepackage{multicol} % Allows multicols in tables \usepackage{tabularx} % Intelligent column widths \usepackage{tabulary} % Used in header and footer \usepackage{hhline} % Border under tables \usepackage{graphicx} % For images \usepackage{xcolor} % For hex colours %\usepackage[utf8x]{inputenc} % For unicode character support \usepackage[T1]{fontenc} % Without this we get weird character replacements \usepackage{colortbl} % For coloured tables \usepackage{setspace} % For line height \usepackage{lastpage} % Needed for total page number \usepackage{seqsplit} % Splits long words. %\usepackage{opensans} % Can't make this work so far. Shame. Would be lovely. \usepackage[normalem]{ulem} % For underlining links % Most of the following are not required for the majority % of cheat sheets but are needed for some symbol support. \usepackage{amsmath} % Symbols \usepackage{MnSymbol} % Symbols \usepackage{wasysym} % Symbols %\usepackage[english,german,french,spanish,italian]{babel} % Languages % Document Info \author{wkcheezy} \pdfinfo{ /Title (science-electricity-review.pdf) /Creator (Cheatography) /Author (wkcheezy) /Subject (Science Electricity Review Cheat Sheet) } % Lengths and widths \addtolength{\textwidth}{6cm} \addtolength{\textheight}{-1cm} \addtolength{\hoffset}{-3cm} \addtolength{\voffset}{-2cm} \setlength{\tabcolsep}{0.2cm} % Space between columns \setlength{\headsep}{-12pt} % Reduce space between header and content \setlength{\headheight}{85pt} % If less, LaTeX automatically increases it \renewcommand{\footrulewidth}{0pt} % Remove footer line \renewcommand{\headrulewidth}{0pt} % Remove header line \renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit % This two commands together give roughly % the right line height in the tables \renewcommand{\arraystretch}{1.3} \onehalfspacing % Commands \newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour \newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols \newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns \newcommand{\tn}{\tabularnewline} % Required as custom column type in use % Font and Colours \definecolor{HeadBackground}{HTML}{333333} \definecolor{FootBackground}{HTML}{666666} \definecolor{TextColor}{HTML}{333333} \definecolor{DarkBackground}{HTML}{A3A3A3} \definecolor{LightBackground}{HTML}{F3F3F3} \renewcommand{\familydefault}{\sfdefault} \color{TextColor} % Header and Footer \pagestyle{fancy} \fancyhead{} % Set header to blank \fancyfoot{} % Set footer to blank \fancyhead[L]{ \noindent \begin{multicols}{3} \begin{tabulary}{5.8cm}{C} \SetRowColor{DarkBackground} \vspace{-7pt} {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}} } \end{tabulary} \columnbreak \begin{tabulary}{11cm}{L} \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Science Electricity Review Cheat Sheet}}}} \\ \normalsize{by \textcolor{DarkBackground}{wkcheezy} via \textcolor{DarkBackground}{\uline{cheatography.com/18772/cs/1932/}}} \end{tabulary} \end{multicols}} \fancyfoot[L]{ \footnotesize \noindent \begin{multicols}{3} \begin{tabulary}{5.8cm}{LL} \SetRowColor{FootBackground} \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}} \\ \vspace{-2pt}wkcheezy \\ \uline{cheatography.com/wkcheezy} \\ \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}} \\ \vspace{-2pt}Published 15th April, 2014.\\ Updated 13th May, 2016.\\ Page {\thepage} of \pageref{LastPage}. \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}} \\ \SetRowColor{white} \vspace{-5pt} %\includegraphics[width=48px,height=48px]{dave.jpeg} Measure your website readability!\\ www.readability-score.com \end{tabulary} \end{multicols}} \begin{document} \raggedright \raggedcolumns % Set font size to small. Switch to any value % from this page to resize cheat sheet text: % www.emerson.emory.edu/services/latex/latex_169.html \footnotesize % Small font. \begin{multicols*}{3} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Static Electricity}} \tn \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{Static Electricity: \newline % Row Count 1 (+ 1) Produces 'Static Charges', meaning that the charge(s) are stationary on the surface of the object that was rubbed.If the object gains electrons, it has negative charge.Loses electrons, positive charge.To charge, must rub an object that takes electrons w/ one that gives electrons.% Row Count 7 (+ 6) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Different Ways of Charging}} \tn \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{Different Ways of Charging: \newline % Row Count 1 (+ 1) • Induction, without direct contact \newline % Row Count 2 (+ 1) • Friction, rubbing 2 different insulators together \newline % Row Count 4 (+ 2) • Conduction, touching a charged insulator to a conductor% Row Count 6 (+ 2) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Conductors and Insulators}} \tn \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{Conductors are a group of materials that allow for electrons to pass through them easily.There are two types, good conductors (metals) and fair conductors (allow for passage just not as much as fair conductors).Insulators are materials where electrons can't move easily through them.% Row Count 6 (+ 6) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Primary/Secondary Cells}} \tn \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{Primary cells can only be used once and secondary cells can be recharged and reused over and over again.% Row Count 3 (+ 3) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Efficency}} \tn \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{Is the measure of how much useful energy the electrical device produced over the amount it has used.You would measure this by using the formula \newline % Row Count 3 (+ 3) Eout(energy out, produced energy)/Ein(Energy in, the amount of energy being used)x100\%.% Row Count 5 (+ 2) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Series and Parallel Circuits}} \tn \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{Series Circuits have only one path for the electrons to follow and Parallel Circuits have more than one.The more loads you add to series circuit, the more resistance you will have and the less current you will have.Also, if you increase the number of loads in a series circuit, the voltage drop across each circuit decreases.The current flowing through a load in a parallel circuit is less than the current flowing through the energy source.The resistance in a parallel circuit is only the load resistance.The voltage drop of a load in a parallel circuit will be the same as the drop across the source.% Row Count 13 (+ 13) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Potential Difference}} \tn \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{This is also called voltage.Potential Difference is the difference in electrical potential energy per unit at two different points in the circuit.The device used to measure this is the voltmeter, the unit is the volt and the symbol is V.You can only measure this by placing the voltmeter parallel to a load.% Row Count 7 (+ 7) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{p{0.62655 cm} x{1.12779 cm} x{1.12779 cm} x{1.29487 cm} } \SetRowColor{DarkBackground} \mymulticolumn{4}{x{5.377cm}}{\bf\textcolor{white}{Ohm's Law}} \tn % Row 0 \SetRowColor{LightBackground} & \seqsplit{Resistance} & \seqsplit{Electrical} Current & Potential Difference \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} \seqsplit{Measures} & \seqsplit{Opposition} to Flow & Electron Flow & Force \tn % Row Count 4 (+ 2) % Row 2 \SetRowColor{LightBackground} \seqsplit{Symbol} & R & I & V \tn % Row Count 5 (+ 1) % Row 3 \SetRowColor{white} \seqsplit{Measure} in & Ohms (Greek Delta) & Ahms(A) & Volts(V) \tn % Row Count 7 (+ 2) % Row 4 \SetRowColor{LightBackground} \seqsplit{Device} & Ohmmeter & Ahmmeter & Voltmeter \tn % Row Count 8 (+ 1) % Row 5 \SetRowColor{white} \seqsplit{Formula} & R= V over I & I = V over R & V=I x R \tn % Row Count 10 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}----} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Circuit Symbols}} \tn \SetRowColor{LightBackground} \mymulticolumn{1}{p{5.377cm}}{\vspace{1px}\centerline{\includegraphics[width=5.1cm]{/web/www.cheatography.com/public/uploads/wkcheezy_1397524601_circuit-symbols.png}}} \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Electrostatic Series}} \tn \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{Electrostatic Series: \newline % Row Count 1 (+ 1) It determines whether or not the substance has \newline % Row Count 2 (+ 1) a strong or weak hold on electrons.% Row Count 3 (+ 1) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{The Law of Attraction}} \tn \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{The Law of Attraction: \newline % Row Count 1 (+ 1) If the two objects have like charges (ex positive, positive), they repel. \newline % Row Count 3 (+ 2) If they have unlike terms (ex positive, negative), they attract.% Row Count 5 (+ 2) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Charging by Conduction}} \tn \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{Occurs when two objects with different amounts of electric charge come in contact with one another and the electrons move from one another.It does not always have to be between a charged object and a neutral one.The electrons always move from the object w/ more electrons to the one w/ less.% Row Count 6 (+ 6) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Electric Discharge}} \tn \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{This occurs when 2 objects that have a charge imbalance are brought close together or come in contact.The greater the imbalance, the greater the discharge will be.Small discharges cause shocks and big discharges can damage electronic equipment.% Row Count 5 (+ 5) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Electrical Power}} \tn \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{Is the rate at which electrical energy is used/produced in a given time.This is measured in watts(w).1 watt=1 joule per second (J/s).The higher the wattage, the more energy is being used/produced.% Row Count 4 (+ 4) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Power}} \tn \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{P(Watts)=Energy divided by delta T(Time(seconds) \newline % Row Count 1 (+ 1) P=Voltage x I(Current)% Row Count 2 (+ 1) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Measuring Electrical Energy}} \tn \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{Measure by formula \newline % Row Count 1 (+ 1) Energy(Joules)=Voltage Drop (V) x Current (A) x Time Interval (s) \newline % Row Count 3 (+ 2) OR \newline % Row Count 4 (+ 1) Energy (Watt Hours (Wh))=Voltage Drop (V) x Current (A) x Time Interval (h)% Row Count 6 (+ 2) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Resistance}} \tn \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{This is the ability of a material to resist the flow of \seqsplit{electrons(current).Insulators} tend to have a high resistance, conductors a low resistance.The device used to measure this is the Ohmmeter, the unit is the ohm and the symbol is the Greek Omega.The greater the resistance, the lower the current and vice versa.A Resistor is a device put in the circuit to limit the current.When using a graph, the slope is the resistance(find by using rise over run)% Row Count 10 (+ 10) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Electrostatic Series Diagram}} \tn \SetRowColor{LightBackground} \mymulticolumn{1}{p{5.377cm}}{\vspace{1px}\centerline{\includegraphics[width=5.1cm]{/web/www.cheatography.com/public/uploads/wkcheezy_1397524315_img01.jpg}}} \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Charging by Friction}} \tn \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{Always one material will lose electrons and the other will gain.Usually occurs when you rub two objects together.Using the electrostatic series, you can determine which material will lose/gain electrons.% Row Count 5 (+ 5) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Weather}} \tn \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{Static electricity is more common in colder weather as the cold air is drier.The more humid the air is, the harder it is for the object to maintain a charge.% Row Count 4 (+ 4) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Grounding}} \tn \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{Excess charges can be removed from an object through grounding.This process is used by removing the excess charge to a large neutral object(mostly the Earth).The electrons move to the Earth if the object is negatively charged, from the Earth if it is positively charged.% Row Count 6 (+ 6) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Induction}} \tn \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{Induction is where a charged object is used to charge a neutral object without contact.It can be charged both permanently and temporarily. \newline % Row Count 3 (+ 3) Temporary Charge: \newline % Row Count 4 (+ 1) When the charged object is brought close to the neutral object, the electrons in the neutral object are forced to shift in position.If the charged object is charged negatively, the electrons will move away and the object will be temporarily charged positively.Vice versa for a negative object.Once the object is taken away, the electrons return to normal. \newline % Row Count 12 (+ 8) Permanent Charge: \newline % Row Count 13 (+ 1) The neutral object can be charged by grounding it when you bring the charged object close to it.The object that was originally charged will keep it's charge where the neutral object will be the opposite charge.% Row Count 18 (+ 5) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Direct/Alternating Current}} \tn \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{Direct current is when the electrons only flow in one direction and it's produced by an electric cell.Alternating current is where the electrons move back and forth, alternating directions.This type can only be produced by generators.% Row Count 5 (+ 5) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Cost of Electricity}} \tn \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{Measure by the formula: \newline % Row Count 1 (+ 1) power used x time x cost of electricity% Row Count 2 (+ 1) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Static Electricity Diagram}} \tn \SetRowColor{LightBackground} \mymulticolumn{1}{p{5.377cm}}{\vspace{1px}\centerline{\includegraphics[width=5.1cm]{/web/www.cheatography.com/public/uploads/wkcheezy_1397524213_handrub.jpg}}} \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Induction Permanent Charge Diagram}} \tn \SetRowColor{LightBackground} \mymulticolumn{1}{p{5.377cm}}{\vspace{1px}\centerline{\includegraphics[width=5.1cm]{/web/www.cheatography.com/public/uploads/wkcheezy_1397524465_chargi2.png}}} \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} % That's all folks \end{multicols*} \end{document}