Tanya Oxtoby said she wanted her side to be "brave" and they started much better than they did in the first leg.
The visitors set up in the same 5-3-2 formation they deployed in the second half of the first leg that worked so well with Chloe McCarron coming in for Danielle Maxwell in the only change.
They were aggressive with their press from the off and stemmed the Norway flow for 13 minutes before a bit of Graham Hansen magic broke the deadlock in the bitter cold in Oslo.
The Barcelona forward glided into the box and weaved past two challenges before seeing her low shot from a narrow angle squirm under Burns and into the net.
Twelve of Graham Hansen's half century of Norway goals have now come against Northern Ireland.
She almost turned provider two minutes later as she delivered a teasing ball to the far post which Ada Hegerberg diverted just past the far post.
The relentless Norway pressure kept coming and Burns was forced to tip away a low effort from Maanum before Rebecca Holloway produced a superb block to prevent Karina Saevick from tucking home on the rebound.
Returning captain Maren Mjelde rattled the crossbar from close range from a corner with Burns again on hand to turn away another powerful strike from Maanum moments later.