IPA: /ɪmˈpʌlʃən/
KK: /ɪmˈpʌlʃən/
A strong inner urge or force that drives someone to act or move in a certain way.
She felt a sudden impulsion to travel the world and explore new cultures.
Impulsion is formed from "in-" (meaning into) and "pulsio" (from "pulsare", meaning to push or drive). The word describes the act of being driven or pushed into action.
Think of being 'driven into' action — 'in-' means into, and 'pulsio' relates to pushing.