Physics - meters and scale

I’m working on a bowling-style game with realistic physics, but am having some issues getting the physics right. I think the problem is scale (ie. my objects are way too big). I assume the physics engine is working with meters but I’m not sure how many meters long and wide my objects are. We have the grid in the editor, which is set to a size of 1.

So my very basic question is - what are the units of the grid? If each grid cell is 1 meter squared that would make sense that I need to really scale things down.

Thanks!

The physics engine treats 1 unit in PlayCanvas as 1m. If you go to your project settings, you’ll see gravity defaults to 0, -9.8, 0.