I used to have a game on my ipod touch about ten years ago where you had to build and connect these balls to make something go through a maze. You could use various kinds of balls and connectors to make your device bounce, not bounce, etc.
Are there apps where you can play games similar to this? I wish I knew the name of the app I played back then.
ETA, it’s an old PC game from the early 90’s, but you should be able to find a ‘current’/working version of it. I know I’ll go download a copy and play it for a few days once in a while.
Fantastic Contraption 2 is a flash game that has some pretty great puzzles along these lines. I played the heck out of it a few years ago.
Otherwise, searching for physics games on the Apple store gives a lot of highly-rated, free games.
I once bought Bridge Constructor Portal, and had a pretty good time with it: it combines bridge-building physics with the matched portals of the Steam game.
Monument Valley is great, and I recommended it wholly, but it’s not at all physics based.
What you want specifically is Bond Breaker. It’s all abound manipulating atoms such that they accomplish a particular goal – lots of attraction and repulsion involved.