The Liverpool No.9 came off the bench midway through the second half and then struck with a little less than a quarter of an hour of the friendly remaining.
With his side three goals down in Oslo, Isak collected a long pass out wide left, just inside the Norway half. From there, he drove and weaved his way into the penalty area before curling a perfect effort into the far top corner.
Sweden’s final pre-World Cup friendly sees them host Greece on Thursday. Their tournament opener against Tunisia takes place in Guadalupe, Mexico, on June 14.
