\begin{frame}
  \frametitle{Indefinite Integrals: Applications}

  \begin{exampleblock}{}
    We consider an object moving in a straight line:
    \begin{itemize}
    \pause
      \item $a(t)$ is the acceleration
    \pause
      \item $v(t)$ is the velocity
    \end{itemize}
    \pause
    Then
    \begin{talign}
      \int_{t_1}^{t_2} a(t) dt = v(t_2) - v(t_1)
    \end{talign}
    is the net change in velocity from $t_1$ to $t_2$.
  \end{exampleblock}

\end{frame}