Way to manipulate ROBLOX Physics?

I don't have any code to show for, but I'm just curious if this is possible:

Is there a way to exert a large amount of force on a Humanoid if they touch a part? Like, if they hit it they fly high in the air for a few seconds? If so, how/where is this possible and are there other tricks to do things similar to this for a sort of parkour game I'm planning?

I'd appreciate some feedback with sources, I'd like to know as much as I can. I'm an Intermediate scripter and understand most terms and logic. Thanks.