questionnaire vs sheet of paper

questionnaire

verb
  • to survey using questionnaires 

noun
  • A form containing a list of questions; a means of gathering information for a survey 

sheet of paper

noun
  • A single piece of loose paper, which, when bound in a book or booklet, consists of two pages (one on the front and one on the back). 

How often have the words questionnaire and sheet of paper occurred in a corpus of books? (source: Google Ngram Viewer )