field of force
/'fi:ldəv'fɔ:s/
Học thuậtThân thiện
Definition
- Noun:
- A region of space in which a physical force is exerted on objects that are present within it: A "field of force" is a conceptual model in physics describing how a force, such as gravity or electromagnetism, can influence objects at a distance without direct physical contact. The force's effect is distributed throughout the space surrounding its source.
Usage
- The term "field of force" is a technical, scientific noun. It is used to describe the invisible area of influence created by a force-generating body or particle.
- It is often used in discussions of fundamental physics, including electromagnetism, gravity, and nuclear forces.
Examples
- Noun:
- The magnet creates a magnetic field of force that attracts nearby iron filings.
- Planets orbit the sun due to the gravitational field of force it generates.
- Scientists study the electric field of force around a charged particle.
Advanced Usage
- "Classical field of force": Refers to fields described by pre-quantum physics, such as Newtonian gravitation or classical electromagnetism.
- In a classical field of force, interactions are considered to be continuous.
- "Vector field of force": Specifies that the force at every point in the field has both a magnitude and a direction.
- An electric field of force is a vector field.
Variants and Related Words
- Force field (n): A common synonym for "field of force," often used in more general or science fiction contexts.
- The spaceship was protected by an energy force field.
- Field (n): In physics, this is the more general and frequently used term (e.g., gravitational field, electric field). "Field of force" is a more explicit phrase.
- Field theory (n): The branch of physics that studies how fields of force work and interact.
Synonyms
- Force field: The most direct synonym.
- Field: A more general term, often implying a field of force.
Related Phrases
- "Lines of force": Imaginary lines used to visualize the direction and strength of a field of force.
- The lines of force in a magnetic field extend from the north to the south pole.
- "To be within a field of force": To be located inside the region where the force is effective.
- Any charged object placed within the electric field of force will experience a push or a pull.
Noun
- the space around a radiating body within which its electromagnetic oscillations can exert force on another similar body not in contact with it