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- 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.
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Aug 23, 2024 · 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.
- Law of Inertia
Law of inertia, postulate in physics that, if a body is at...
- Force
Simply stated, a force is a push or a pull. Forces can...
- Fundamental Force
fundamental force, in physics, any of the four basic...
- Law of Inertia
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Simply stated, a force is a push or a pull. Forces can change an object’s speed, its direction, and even its shape. Pushing a door open, pulling it closed, stretching a rubber band—all of these actions require force. Force is a vector quantity—that is, it has both magnitude (size) and direction.
Aug 6, 2024 · fundamental force, in physics, any of the four basic forces—gravitational, electromagnetic, strong, and weak—that govern how objects or particles interact and how certain particles decay. All the known forces of nature can be traced to these fundamental forces.
- The Editors of Encyclopaedia Britannica
A force is a push or a pull on an object. A force happens when two objects interact—that is, when one object does something to the other object. When the interaction stops, the force stops, too.
- Units of Force
- History
- Examples of Forces
- The Fundamental Forces
- References
The SI unit of force is the newton (N), which is a kilogram meter per second squared (kg·m/s2). Other common units include: 1. dyne 2. kilogram-force (kilopond) 3. poundal 4. kip 5. pound-force
The Greek philosophers Aristotle and Archimedes studied force, but believed constant motion requires a constantly applied force. Galileo Galilei and Sir Isaac Newton corrected this misperception and described force mathematically. Galileo’s inclined plane experiment (1638) mathematically described naturally accelerated motion. Newton’s three laws o...
Forces exist all around us in the everyday world. For example: 1. Friction is a force that opposes motion. 2. Applied force is the force applied to an object by a person or other object. 3. Centripetal forceis a force acting on a body moving in a circular path that is directed toward the center of the circle. 4. Centrifugal forceis an apparent forc...
The four fundamental forces of nature are gravity, electromagnetism, the strong interaction, and the weak interaction. 1. Gravity is the attractive force between two masses. It acts over an infinite distance, but is the weakest of the fundamental forces. 2. Electromagnetism describes the attraction and repulsions of electrical charges and magnets. ...
Corben, H.C.; Stehle, Philip (1994). Classical Mechanics. New York: Dover Publications. ISBN 978-0-486-68063-7.Cutnell, John D.; Johnson, Kenneth W. (2003). Physics(6th ed.). Hoboken, New Jersey: John Wiley & Sons Inc. ISBN 978-0471151838.Hellingman, C. (1992). “Newton’s third law revisited”. Phys. Educ. 27 (2): 112–115. doi:10.1088/0031-9120/27/2/011Newton, Isaac (1999). The Principia Mathematical Principles of Natural Philosophy. Berkeley: University of California Press. ISBN 978-0-520-08817-7.Aug 26, 2024 · Physics, science that deals with the structure of matter and the interactions between the fundamental constituents of the observable universe. Its scope of study encompasses not only the behavior of objects under the action of forces but also gravitational, electromagnetic, and nuclear force fields.
2 days ago · Gravity, in mechanics, is the universal force of attraction acting between all bodies of matter. It is by far the weakest force known in nature and thus plays no role in determining the internal properties of everyday matter.
