My question is, should it be always followed by the preposition on? Her speech made a profound impact on everyone. Nowadays, we often see the word impact being used as a verb.
J.Cole The Warm Up Mixtape by SoundTunes12 Sound Tunes12 Free
This change has no impact in the system's current behaviour. Is the preposition in grammatical here? This change has no impact on the system's.
I think we should have used on instead:
Impact usually refers to "significant influence", both in noun and verb forms. Let’s look at impact first: We only talk about the medical field and don’t know about other industries. A research academic with a score of more than 10 points is quite tough. An article with a score of 10 will definitely become your masterpiece. The field of tumor research can be described as a fight between gods and gods, with the highest IF being 292. Even so, if. Oxford dictionaries gives the following.