Her specialist subject was the Potter movies.
She was up against three middle-aged men in the quiz, but she knew her subject better than they knew theirs.
The men scored between eight and 12 points, meaning Jacqueline was ahead at the halfway stage in the quiz.
The second half of the quiz was made up of general knowledge questions.
Jacqueline managed to increase her score to 15 points, but it wasn't good enough to beat her fellow contestants.
Their final scores ranged from 17 to 24 points.
Quizmaster John Humphrys seemed very impressed with how Jacqueline coped with the pressure.
He said she was probably the youngest woman to have ever taken part in the show.