Can you pass data to a form?

Yes, that's possible through URL parameter. Here's a guide: http://www.jotform.com/help/71-Prepopulating-the-fields-to-your-JotForm-via-URL-parameters

If you want to pass form data from one form to another, here's how: https://www.jotform.com/help/351-How-to-Automatically-Pass-Form-Data-to-Another-Form