\begin{frame}
  \frametitle{Power Function: Applications}
  
  \begin{exampleblock}{}
    Power functions are used for modeling:
    \begin{itemize}
    \pause
      \item the illumination as a function of the distance from a light source
    \pause
      \item the period of the revolution of a planet as a function of the distance from the sun
    \end{itemize}
  \end{exampleblock}
\end{frame}