Effect vs Impact

Quando usar cada um em inglês, com significado, registro e exemplos.

Effect

Top 1000 (muito comum)A2noun

Impact

Top 1000 (muito comum)B1noun
 EffectImpact
Pronúncia🇬🇧 /["/ɪˈfekt/"]/🇺🇸 /["/ɪˈfekt/"]/🇬🇧 /["/ˈɪmpækt/"]/🇺🇸 /["/ˈɪmpækt/"]/
SignificadoA change that is caused by something.The strong effect or change that something has on something else.
ExemploThe effect of the medicine was noticeable within hours.The impact of the new policy was felt immediately across the company.
RegistroNeutroNeutro
Quão comumTop 1000 (muito comum)Top 1000 (muito comum)
Nível CEFRA2B1
Classe gramaticalnounnoun
Colocaçõesdecisive, dramatic, far-reaching, bring about, exert, have, exist, occur, spread, in effect, to this effect, to that effect, cause and effect, to little effect, to no effect, special, cinematic, audiobig, considerable, dramatic, achieve, create, exert, under the impact of, impact on, impact upon, full, initial, asteroid, take, feel, absorb, occur, knock somebody/​something…, speed, velocity, crater, on impact, the moment, point, time, etc. of impact
Antônimoscause, sourceinsignificance, ineffectiveness
Erros comunsConfused with 'affect' versus 'effect'., Using 'effect' as a verb instead of a noun., Confusing singular and plural forms (e.g., 'effects' vs 'effect').Confused with 'effect' — remember that 'impact' often implies a stronger influence., Using 'impact' as a verb incorrectly, such as 'impacting on' instead of 'impacting'., Confusing the noun and verb forms — ensure the context matches the form used.
Notas de usoUse 'effect' to refer to results or changes. It's more formal than 'result.' Avoid using it where 'affect' (to influence) fits better.Use 'impact' when describing the effect of one thing on another. It's suitable for both spoken and written contexts, but avoid using it in highly formal situations like academic papers. In casual conversation, synonyms like 'effect' might be more appropriate.

Perguntas frequentes: Effect vs Impact

Qual é a diferença entre Effect e Impact?

Effect: A change that is caused by something. Impact: The strong effect or change that something has on something else.

Qual é mais avançada: Effect e Impact?

Impact é o nível mais alto, em B1, na escala CEFR.

Effect e Impact estão no mesmo nível CEFR?

Effect: A2, Impact: B1 na escala CEFR.

Que classe gramatical são Effect e Impact?

Effect: noun, Impact: noun.

Pode mostrar um exemplo de cada?

Effect: The effect of the medicine was noticeable within hours. Impact: The impact of the new policy was felt immediately across the company.

Posso usar Effect e Impact de forma intercambiável?

Nem sempre. Effect e Impact são relacionadas e às vezes se sobrepõem, mas diferem em registro, frequência e uso, então trocar uma pela outra pode mudar o sentido ou o tom. Veja as diferenças acima antes de substituir.