How to Say "impulse" in Spanish
The most common Spanish word for “impulse” is “impulso” — use 'impulso' when referring to a sudden, spontaneous urge or desire to do something, often without much thought.
impulso
eem-POOL-sohimˈpulso

Examples
Compró el coche por un impulso, sin pensarlo mucho.
He bought the car on an impulse, without thinking about it much.
Sentí el impulso de levantarme y aplaudir.
I felt the urge to stand up and applaud.
Using Prepositions
When talking about acting on a sudden urge, Spanish uses the preposition 'por' (by/for) or 'de' (of): 'Actué por impulso' or 'Tuve el impulso de llamar.'
Confusing 'Impulso' and 'Impulsividad'
Mistake: “Using 'impulsividad' when referring to a single action.”
Correction: 'Impulsividad' is the personality trait (being impulsive), while 'impulso' is the singular action or feeling that leads to the act. Say: 'Fue un impulso' (It was an impulse).
pronto
PRON-tohˈpɾon.to

Examples
En un pronto de ira, golpeó la mesa.
In an outburst of anger, he hit the table.
Le dio un pronto y decidió viajar por el mundo.
He had a sudden impulse and decided to travel the world.
moción
mo-SYOHNmoˈsjon

Examples
La ley de la moción perpetua es un concepto fascinante.
The law of perpetual motion is a fascinating concept.
Sintió una moción interna que le impulsó a ayudar.
He felt an internal impulse that drove him to help.
Abstract Movement
In this sense, 'moción' often refers to an abstract or internal movement rather than just walking or running.
Impulso vs. Pronto
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