acid-base rxn's

diff --git a/physics/final.tex b/physics/final.tex
index b37c41a46d2216cd5b0fabf8fe82d8ff441021ea..d988bac602c5bbfb8bc46e5f672801370d69775d 100644 (file)
--- a/physics/final.tex
+++ b/physics/final.tex
@@ -329,6 +329,10 @@
 \section{Waves}
 
   \textbf{nodes:} fixed on graph
+  \textbf{amplitude:} max displacement from $y=0$
+  \textbf{rarefactions} (expansions) / \textbf{compressions}
+  \textbf{mechanical:} transfer of energy without net transfer of matter
+  
 
   \textbf{Longitudinal (motion $||$ wave)}
   \includegraphics[width=6cm]{graphics/longitudinal-waves.png}