13 in the world, finished last in its group four years ago in Canada, the country's only other appearance in the tournament.
Jennifer Hermoso scored on two second-half penalty kicks Saturday as Spain came from behind to beat Women's World Cup debutants South Africa 3-1 in Group B.
Striker Thembi Kgatlana scored the outlet draw of the match as she curled the ball in the left fringe of the penalty space and beyond the catch of Spanish goalkeeper Sandra Panos.
Facing opposition placed 36 places below them in the Federation Internationale de Football Association world rankings, Spain needed a great late comeback to secure victory in their first Group B match, Jennifer Hermoso and Lucia Garcia ensuring they joined the Germans at the top of the pool.
The turnaround was completed in the 73rd minute when VAR was used to punish Nothando Vilakazi - who received a second yellow card - for a lunge on substitute Lucia Garcia, with Hermoso keeping her composure to secure a hard-fought win before Garcia added an insurance goal later in the match.
The sides both struck the woodwork before the deadlock was broken, Yang Li hitting the upright when presented with a fine opportunity to score after opponent Carolin Simon had rattled the bar in a tense clash.
Germany won their last title in 2007 and next face Spain in Group B on Thursday, while China, runners-up to the United States in 1999, play South Africa on Friday.
Reiten's deflected shot in the 17th minute gave Norway the lead, and Utland scored in the 34th minute. An own goal made it 3-0 and wrapped up scoring before the break.
New Zealand start their tournament with a match against the Netherlands on Wednesday at 1am.