The former is a labialised consonant, so the lips are brought close together, like to pronounce a /w/, but while saying a k. The general term is “secondary articulation”. I think the most famous of these, at least in European languages, is palatalisation.
Oh dang you’re right, read your comment too quickly and mixed up v and w, lol
What’s the difference between /kʷ/ and /kw/ though? Never seen that first notation
The former is a labialised consonant, so the lips are brought close together, like to pronounce a /w/, but while saying a k. The general term is “secondary articulation”. I think the most famous of these, at least in European languages, is palatalisation.