Magnetic Fields Review

Front

What is a magnetic field?

Back

A magnetic field is a region around a magnet where magnetic forces can be detected. It is represented by field lines that show the direction and strength of the magnetic force.

Front

What is potential energy in the context of magnetic fields?

Back

Potential energy in magnetic fields refers to the energy stored in an object due to its position in relation to a magnetic field. The further an object is from a magnet, the higher its potential energy.

Front

What happens when two like poles of magnets are brought close together?

Back

Like poles of magnets (e.g., north-north or south-south) repel each other, causing them to move away from each other.

Front

What happens when two opposite poles of magnets are brought close together?

Back

Opposite poles of magnets (e.g., north-south) attract each other, causing them to move closer together.

Front

What is geomagnetism?

Back

Geomagnetism is the study of the Earth's magnetic field, which is generated by the movement of molten iron in its outer core.

Front

What is the role of magnetic field lines?

Back

Magnetic field lines visually represent the strength and direction of a magnetic field. The closer the lines, the stronger the magnetic field.

Front

What is the difference between magnetic force and gravitational force?

Back

Magnetic force acts at a distance between magnets and can either attract or repel, while gravitational force always attracts and acts between masses.

Front

How does distance affect magnetic force?

Back

The strength of the magnetic force decreases with increasing distance between the magnets. The closer the magnets are, the stronger the force.

Front

What is the significance of the north and south poles of a magnet?

Back

The north pole of a magnet is the end that points toward the Earth's geographic North when freely suspended, while the south pole points toward the geographic South. They determine how magnets interact with each other.

Front

What is magnetic induction?

Back

Magnetic induction is the process by which a material becomes magnetized when exposed to a magnetic field, aligning its internal magnetic domains.