Data Query

I'm getting to grips with PowerApps (I think), and we're testing a use-case with a customer

We've created a list that will be used by delivery drivers so they know which job is next and what is to be delivered etc

I have a PowerApp done for this but it displays all the jobs in the list (completed or not completed)

Is there a way to have it display only the jobs that have not yet been completed. We are currently using a Yes/No for the completed field, but happy to change this as required