Which animation or visual queue indicates that there’s more content below on mobile

i'm designing a form on a mobile app. It's not visible within a single screen, yet not long enough to be on a 2nd screen.

My question is, what kind of animation or visual queue can i use to create an affordance that there's more content below. i've seen similar things on desktop like this, but not for mobile.

Any suggestions and real world examples would be appreciated.