What is a field in physics?
Q: What is a field in physics?
A: A field in physics means that a physical quantity is assigned to every point in space.
Q: What is the first person who coined the term "field"?
A: Michael Faraday became the first to coin the term "field" in 1849.
Q: How are scalar fields defined?
A: Scalar fields are defined as fields where there is a number for each point in space.
Q: What are vector fields or tensor fields?
A: Vector fields or tensor fields are more complicated fields where there are more than one number for each point in space.
Q: Can a gravitational field be modeled by a vector field?
A: Yes, a gravitational field can be modeled by a vector field where a vector indicates the acceleration a mass would experience at each point in space.
Q: What are temperature fields and air pressure fields?
A: Temperature fields and air pressure fields are examples of fields that are often illustrated on weather reports by isotherms and isobars by joining up the points of equal temperature or pressure respectively.
Q: Does the strength of a field vary over a region?
A: Yes, the strength of a field usually varies over a region.
