We hope that these programs will have a positive 'impact on' the community. [=will help the community]
The stress of her job is having a negative 'impact on' her health. [=is harming her health]
We need to be concerned about the environmental 'impacts' of all this construction.
(..) - Uh... About a load and a half, We need to know the exact number of bullets, We'll take some x-rays, make sure the impact didn't cause any internal damage, I know it hurts, It's like getting hit with a bat, Just hang in there, man, Hold on, You're doin' fine, man, (..)1994 The Glass Shield