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force noun (INFLUENCE) C2 [ C or U ] (a person or thing with a lot of) influence and energy. 影響；活力；影響大的人（或事物）. He was a powerful force in politics. 他曾是政壇上舉足輕重的人物。. Fishermen are always at the mercy of the forces of nature (= bad weather conditions). 漁夫們總是聽天由命。.
A force is a push or pull that acts upon an object as a result of that objects interactions with its surroundings. In this Lesson, The Physics Classroom differentiates between the various types of forces that an object could encounter. Some extra attention is given to the topic of friction and weight.
The concept of force is central to all three of Newton's laws of motion. Types of forces often encountered in classical mechanics include elastic, frictional, contact or "normal" forces, and gravitational. The rotational version of force is torque, which produces changes in the rotational speed of an object.
forces ：语体较正式，多用复数形式，既可指包括陆、海、空在内的一个国家的整个武装力量，也可指某一兵种。. 爱词霸权威在线词典,为您提供forces的中文意思,forces的用法讲解,forces的读音,forces的同义词,forces的反义词,forces的例句等英语服务。.
力. 物理學主題. 關於與「 力 」標題相近或相同的條目頁，請見「 力 (消歧義) 」。. 力可以說成對一個物體的推力與拉力，可以由 重力 、磁力或任何可以造成質體加速的現象來產生。. 力 （英語： force ）是 物體 之間的交互作用。. 力可以改變物體 速度 的大小 ...
force noun (INFLUENCE) C2 [ C or U ] (a person or thing with a lot of) influence and energy. 影响；活力；影响大的人（或事物）. He was a powerful force in politics. 他曾是政坛上举足轻重的人物。. Fishermen are always at the mercy of the forces of nature (= bad weather conditions). 渔夫们总是听天由命。.
An intuitive definition of force —that is, a push or a pull—is a good place to start. We know that a push or a pull has both magnitude and direction (therefore, it is a vector quantity), so we can define force as the push or pull on an object with a specific magnitude and direction.
2024年6月27日 · Force, in mechanics, any action that tends to maintain or alter the motion of a body or to distort it. The concept of force is commonly explained in terms of Isaac Newton’s three laws of motion. Because force has both magnitude and direction, it is a vector quantity.
When forces act on objects they can have the following effects: The object can speed up or slow down. Think about a race car travelling in a straight line whilst it speeds up and slows down.
Explore the forces at work when pulling against a cart, and pushing a refrigerator, crate, or person. Create an applied force and see how it makes objects move. Change friction and see how it affects the motion of objects.
