dynamic friction

[daɪˈnæmɪk ˈfrɪkʃən]
noun
atrito cinético
1. The friction force that acts on an object that is moving relative to another surface, causing resistance to motion
When you slide a box across the floor, dynamic friction opposes the motion and slows it down.
Quando você desliza uma caixa pelo chão, o atrito cinético se opõe ao movimento e o desacelera.
2. In physics, the type of friction present when there is relative motion between two surfaces in contact
The coefficient of dynamic friction is typically lower than static friction for the same two materials.
O coeficiente de atrito cinético é tipicamente menor do que o atrito estático para os mesmos dois materiais.
This is a technical physics term used uniformly across both Brazilian and American educational systems. In Brazil, 'atrito cinético' is the standard term taught in high school physics (Ensino Médio) and engineering programs. The concept is fundamental to mechanics courses and is discussed similarly in both countries' scientific curricula.
Synonyms / Sinônimos
kinetic frictionsliding frictionatrito de deslizamento
Antonyms / Antônimos
static frictionatrito estático

Regional Variations

General Brazilian
atrito cinético
Most common term used in Brazilian physics education and technical contexts
São Paulo
atrito cinético
Standard usage in academic and industrial settings
Portugal
atrito cinético
Same terminology as Brazilian Portuguese; used in European physics education
General
atrito de deslizamento
Alternative term meaning 'sliding friction', less formal but equally understood

Related Words

friction coefficientnormal forceresistancecoefficient of kinetic frictionatritocoeficiente de atritoforça normal

Related Idioms & Phrases

friction at play
overcome friction
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