\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{Ayesha Talib}
\pdfinfo{
  /Title (gravitation.pdf)
  /Creator (Cheatography)
  /Author (Ayesha Talib)
  /Subject (Gravitation Cheat Sheet)
}

% Lengths and widths
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% 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
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\newcommand{\tn}{\tabularnewline} % Required as custom column type in use

% Font and Colours
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\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{Gravitation Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Ayesha Talib} via \textcolor{DarkBackground}{\uline{cheatography.com/173447/cs/36695/}}}
\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}Ayesha Talib \\
  \uline{cheatography.com/ayesha-talib} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 24th January, 2023.\\
   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*}{2}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{UNIVERSAL LAW OF GRAVITATION}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{every object in the universe attracts every other object with a force which is proportional to the product of their masses and inversely proportional to the square of the distance b/w them. \newline % Row Count 4 (+ 4)
6.673.10\textasciicircum{}-11\textasciicircum{}Nm\textasciicircum{}2\textasciicircum{}kg\textasciicircum{}-2\textasciicircum{}; Henry Cavendish using a sensitive balance.% Row Count 6 (+ 2)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{IMPORTANCE}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{force that binds us to earth; motion of moon around earth; motion of planets around sun; tides due to moon and sun.% Row Count 3 (+ 3)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{ACCELERATION DUE TO GRAVITY}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{acceleration experienced by a freely falling object towards the centre of the earth. 9.8 m/s\textasciicircum{}2\textasciicircum{}. \newline % Row Count 2 (+ 2)
E\textasciicircum{}R\textasciicircum{}\textgreater{}P\textasciicircum{}R\textasciicircum{} = E\textasciicircum{}g\textasciicircum{}\textless{}P\textasciicircum{}g\textasciicircum{}% Row Count 3 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{{\bf{free fall}}: it is the object falling towards the earth under the influence of attraction force earth/gravity.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{4.08 cm} x{3.92 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{MASS /\textbackslash{} WEIGHT}}  \tn
% Row 0
\SetRowColor{LightBackground}
quantity/amount of matter present in an object & force by which earth attracts an object \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
scalar quantity & vector quantity \tn 
% Row Count 4 (+ 1)
% Row 2
\SetRowColor{LightBackground}
SI unit: kg & SI unit: N \tn 
% Row Count 5 (+ 1)
% Row 3
\SetRowColor{white}
remains constant everywhere & changes as gravity changes \tn 
% Row Count 7 (+ 2)
% Row 4
\SetRowColor{LightBackground}
can never be 0 & 0 at the centre of earth \tn 
% Row Count 9 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{W\textasciicircum{}M\textasciicircum{} = 1/6 W\textasciicircum{}E\textasciicircum{}}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{p{1.292 cm} x{3.42 cm} x{2.888 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{CELESTIAL BODIES: MASS \& RADIUS}}  \tn
% Row 0
\SetRowColor{LightBackground}
earth & 5.98.10\textasciicircum{}24\textasciicircum{}kg & 6.37.10\textasciicircum{}6\textasciicircum{}m \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
moon & 7.36.10\textasciicircum{}22\textasciicircum{}kg & 1.74.10\textasciicircum{}6\textasciicircum{}m \tn 
% Row Count 2 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{THRUST}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{force acting on an object perpendicular to the surface.% Row Count 2 (+ 2)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{PRESSURE}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{thrust on unit area. SI unit: Pa or N/m\textasciicircum{}2\textasciicircum{}% Row Count 1 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{BUOYANT FORCE OR UPTHRUST}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{tendency of fluids to exert upward force on an immersed object. \newline % Row Count 2 (+ 2)
{\bf{factors affecting buoyant force}} \newline % Row Count 3 (+ 1)
volume of the object immersed in fluid \newline % Row Count 4 (+ 1)
density of fluid \newline % Row Count 5 (+ 1)
acceleration due to gravity \newline % Row Count 6 (+ 1)
temperature of fluid\textasciicircum{}inversely proportional\textasciicircum{} \newline % Row Count 7 (+ 1)
FLOAT:  \newline % Row Count 8 (+ 1)
upthrust \textgreater{} weight of object \newline % Row Count 9 (+ 1)
\textasciicircum{}d\textasciicircum{}fluid \textgreater{} \textasciicircum{}d\textasciicircum{}object \newline % Row Count 10 (+ 1)
SINK: \newline % Row Count 11 (+ 1)
upthrust \textless{} weight of object \newline % Row Count 12 (+ 1)
\textasciicircum{}d\textasciicircum{}fluid \textless{} \textasciicircum{}d\textasciicircum{}object% Row Count 13 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{density of substance is the mass per unit volume.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{ARCHIMEDES' PRINCIPLE}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{when a body is immersed fully or partially in a fluid, it experiences an upward force that is equal to the weight of the fluid displaced by it. used in designing submarines \& ships, lactometers \& hydrometers.% Row Count 5 (+ 5)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{lactometers: determine the purity if a sample of milk.  \newline hydrometers: determine the density of liquids.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}