Valerie Mulcahy was in unerring from frees, with six of her seven poins coming from placed balls, while Doireann O'Sullivan hit four from play.
Cork led by 0-10 to 0-3 at half-time, and with Briege Corkery and Geraldine O'Flynn performing heroics in defence, they pushed on in the second half.
Sarah Houlihan was left with too much to do up front for Kerry, and her three points tally was never going to be enough to inspire the Kingdom, appearing in a first final since 1993.
In the Intermediate final, Armagh defeated Waterford by 1-12 to 1-5 to regain senior status.
Shauna O'Hagan's early goal gave them th platform, and they led by 1-5 to 1-1 at half-time, after Hannah Landers had pulled back a Waterford goal.
The Orchard girls pushed on for victory with some well taken scores from Caroline O'Hanlon, but needed a couple of superb saves from Catherine McAlinden.