A contact force is any force that occurs as a result of two objects making contact with each other. Contact forces are ubiquitous and are responsible for most visible interactions between macroscopic collections of matter. Pushing a car or kicking a ball are some of the everyday examples where contact forces are at work. In the first case the force is continuously applied to the car by a person, while in the second case the force is delivered in a short impulse.
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| - قوة تماس (ar)
- Contact force (en)
- Força de contato (pt)
- 接觸力 (zh)
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| - قوة التماس هي قوة الجسم المادي التي تمكنه من التأثير في جسم آخر عند حدوث تماس بينهما في موضع يقال له . (ar)
- 接觸力（Contact force）是描述一種在宏觀尺度下需要觸碰到才能展現出來的力，例如：拉力、推力、浮力、摩擦力、正向力等。但是在微觀尺度下，接觸力仍是電磁力的作用所表現出的現象。 (zh)
- A contact force is any force that occurs as a result of two objects making contact with each other. Contact forces are ubiquitous and are responsible for most visible interactions between macroscopic collections of matter. Pushing a car or kicking a ball are some of the everyday examples where contact forces are at work. In the first case the force is continuously applied to the car by a person, while in the second case the force is delivered in a short impulse. (en)
- Em física, força de contato é a força gerada no ponto de contato entre dois corpos, sendo assim, quando o contato é encerrado, a força deixa de agir sobre o corpo. Assim como todas as outras forças, esta é regida pela Segunda Lei de Newton, porém ocorre apenas quando estes objetos encontram-se em contato direto. (pt)
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| - قوة التماس هي قوة الجسم المادي التي تمكنه من التأثير في جسم آخر عند حدوث تماس بينهما في موضع يقال له . (ar)
- A contact force is any force that occurs as a result of two objects making contact with each other. Contact forces are ubiquitous and are responsible for most visible interactions between macroscopic collections of matter. Pushing a car or kicking a ball are some of the everyday examples where contact forces are at work. In the first case the force is continuously applied to the car by a person, while in the second case the force is delivered in a short impulse. Contact forces are often decomposed into orthogonal components, one perpendicular to the surface(s) in contact called the normal force, and one parallel to the surface(s) in contact, called the friction force. Not all forces are contact forces; for example, the weight of an object is the force between the object and the Earth, even though the two do not need to make contact. Gravitational forces, electrical forces and magnetic forces are body forces and can exist without contact occurring. (en)
- Em física, força de contato é a força gerada no ponto de contato entre dois corpos, sendo assim, quando o contato é encerrado, a força deixa de agir sobre o corpo. Assim como todas as outras forças, esta é regida pela Segunda Lei de Newton, porém ocorre apenas quando estes objetos encontram-se em contato direto. É uma força comum no dia-a-dia, e existem vários exemplos dela em diferentes situações, como uma pessoa empurrando um móvel. A força que a pessoa aplica no móvel assim como a força que o chão aplica em ambos para mantê-los acima dele são forças de contato. Algumas dessas forças são especialmente notórias, assim recebendo nomes diferenciados, como o atrito, a força normal e a tração. (pt)
- 接觸力（Contact force）是描述一種在宏觀尺度下需要觸碰到才能展現出來的力，例如：拉力、推力、浮力、摩擦力、正向力等。但是在微觀尺度下，接觸力仍是電磁力的作用所表現出的現象。 (zh)
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