AP Physics 2: Algebra-Based Flashcards: Magnetic Fields
Written by AP Content Team, Verified for 2026 AP Exams, Last updated: May 2026
Review key ideas with interactive flashcards. This set includes 11 cards to help you master important concepts.
What determines the magnetic behavior of a material?
The magnetic behavior of a material is a result of the configuration of magnetic dipoles within the material.
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What determines the magnetic behavior of a material?
The magnetic behavior of a material is a result of the configuration of magnetic dipoles within the material.
Term: Magnetic Dipoles
Magnetic dipoles are microscopic entities within a material whose configuration (alignment) determines the material's overall magnetic behavior.
What is magnetic permeability?
Magnetic permeability is a property of a material that describes its ability to support the formation of a magnetic field.
What is a fundamental property of magnetic field lines?
Magnetic field lines always form closed loops, originating from a north pole and returning to a south pole.
What is a magnetic field?
A magnetic field is a vector field used to determine the magnetic force exerted on moving electric charges, electric currents, or magnetic materials.
What is the principle of magnetic poles, often referred to as the 'no magnetic monopoles' rule?
No magnetic north pole is ever found in isolation from a south pole; they always exist in pairs.
What is the vacuum permeability, μ₀?
The vacuum permeability (μ₀) is the constant value of magnetic permeability for free space that appears in equations representing physical relationships.
How does the structure of a magnetic field relate to the existence of individual poles?
The fact that magnetic field lines form closed loops demonstrates that north and south poles cannot be isolated from one another.
Why is a magnetic field considered a 'vector field'?
It is a vector field because it has both a magnitude (strength) and a direction at every point in space.
On which three types of objects can a magnetic field exert a force?
A magnetic field can exert a force on moving electric charges, electric currents, and magnetic materials.
How is the magnetic property of free space quantified in physics equations?
Free space has a constant value of magnetic permeability, known as the vacuum permeability (μ₀), which is used in physical equations.