\vspaceSynopsis, one of:
\vspace{length}
\vspace*{length}
Add the vertical space length. The length can be positive,
negative, or zero. It is a rubber length—it may contain a plus
or minus component (see Lengths).
This puts space between the two paragraphs.
And I slept.
\vspace{1ex plus 0.5ex}
The new day dawned cold.
(See \bigskip & \medskip & \smallskip for common inter-paragraph spaces.)
The *-version inserts vertical space that non-discardable. More
precisely, LaTeX discards vertical space at a page break and the
*-version causes the space to stay. This example leaves space
between the two questions.
Question: Find the integral of \( 5x^4+5 \).
\vspace*{2cm plus 0.5cm}
Question: Find the derivative of \( x^5+5x+9 \).
That space will be present even if the page break happens to fall between the questions.
If you use \vspace in the middle of a paragraph (i.e., in
horizontal mode) then the space is inserted after the line containing
the \vspace command; it does not start a new paragraph at the
\vspace command.
In this example the two questions will be evenly spaced vertically on the page, with at least one inch of space below each.
\begin{document}
1) Who put the bomp in the bomp bah bomp bah bomp?
\vspace{1in plus 1fill}
2) Who put the ram in the rama lama ding dong?
\vspace{1in plus 1fill}
\end{document}