Magnetic Fields 1.2-1.4

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 magnetic field lines that show the direction and strength of the magnetic force.

Front

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

Back

They repel each other, meaning they push away from each other.

Front

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

Back

They attract each other, meaning they pull towards each other.

Front

What is the principle of magnetic force?

Back

Magnetic force is the attraction or repulsion that arises between electrically charged particles due to their motion.

Front

What is the significance of isolating one variable in an experiment?

Back

Isolating one variable allows for a clear understanding of how that variable affects the outcome, ensuring that results are valid and reliable.

Front

What is the role of magnetic field lines?

Back

Magnetic field lines visually represent the strength and direction of a magnetic field; they show how the magnetic force acts in space.

Front

What is the effect of distance on magnetic force?

Back

The strength of the magnetic force decreases as the distance between two magnets increases.

Front

What is a common misconception about weak magnets?

Back

A common misconception is that weak magnets can only attract; however, they can also repel under certain conditions.

Front

What is the relationship between magnetic fields and electric currents?

Back

Electric currents create magnetic fields, and this principle is used in electromagnets and many electrical devices.

Front

What is the difference between permanent magnets and temporary magnets?

Back

Permanent magnets maintain their magnetic properties over time, while temporary magnets only exhibit magnetism when in the presence of a magnetic field.