Force field

Definition

A force field is a region of space in which an object experiences a non-contact force. Examples include gravitational fields, electric fields, and magnetic fields.

5 Must Know Facts For Your Next Test

1. A force field is characterized by the distribution of forces at each point within the field.
2. The strength and direction of a force field can be represented by vectors.
3. In a gravitational field, the force acts on objects with mass; in an electric field, it acts on charged particles.
4. The concept of a force field helps explain how forces can act over a distance without physical contact.
5. Force fields are essential for understanding phenomena such as planetary orbits and electric circuits.

Review Questions

• What is a force field and how does it differ from contact forces?
• How is the strength and direction of a force field typically represented?
• In what ways do gravitational and electric fields differ in terms of the objects they act upon?

Related terms

Gravitational Field:

A region of space around a mass where another mass experiences an attractive force due to gravity.

Electric Field:

A region around a charged particle where other charged particles experience an electrostatic force.

Magnetic Field:

A region around a magnetic material or moving electric charge within which the force of magnetism acts.