\mode<presentation>

\setbeamerfont{title}{size=\fontsize{38pt}{38pt}, series=\fontfamily{poppins}}
\setbeamerfont{date}{size=\fontsize{18pt}{18pt}, series=\fontfamily{poppins}}
\setbeamerfont{date_small}{size=\fontsize{17pt}{17pt}, series=\fontfamily{poppins}}
\setbeamerfont{author}{size=\fontsize{12.5pt}{12.5pt}, series=\fontfamily{poppins}}
\setbeamerfont{frametitle}{size=\fontsize{25pt}{25pt}, series=\fontfamily{poppins}}
\setbeamerfont{frame_number}{size=\fontsize{18pt}{18pt}, series=\fontfamily{poppins}}
\setbeamerfont{normal text}{size=\fontsize{20pt}{24pt}, series=\fontfamily{poppins}}
\setbeamerfont{tuhh website}{size=\fontsize{27pt}{27pt}, series=\fontfamily{poppins}}
\setbeamerfont{thank you}{size=\fontsize{32pt}{32pt}, series=\fontfamily{poppins}}
\setbeamerfont{signature}{size=\fontsize{10pt}{10pt}, series=\fontfamily{poppins}}
\setbeamerfont{block body}{size=\fontsize{20pt}{24pt}, series=\fontfamily{poppins}}
\setbeamerfont{block title}{size=\fontsize{20pt}{24pt}, series=\fontfamily{poppins}}
\setbeamerfont{caption}{size=\fontsize{14.3pt}{14.3pt}, series=\fontfamily{poppins}}

\mode<all>