Amplify Magnetic Fields 1.4, 1.5, and 1.6

Front

What are magnetic field lines and what do their density indicate?

Back

Magnetic field lines are visual representations of magnetic fields. The density of these lines indicates the strength of the magnetic field; closer lines mean a stronger field.

Front

What is the significance of the poles of a magnet?

Back

The poles of a magnet are the regions where the magnetic field is strongest. Every magnet has a north and a south pole.

Front

Why does a compass point north?

Back

A compass points north because the positive north side of the compass magnet is attracted to the Earth's magnetic south pole.

Front

What happens when two magnets are brought close together?

Back

When two magnets are brought close together, they can either attract or repel each other depending on the orientation of their poles.

Front

What is the direction of the magnetic force between two attracting magnets?

Back

The magnetic force comes out of the positive north pole of one magnet and goes into the negative south pole of the other magnet.

Front

What is the Earth's magnetic field and how is it generated?

Back

The Earth's magnetic field is generated by the molten iron core of the Earth, which creates a magnetic field around the planet.

Front

What is the role of magnetic field lines in understanding magnetic fields?

Back

Magnetic field lines help visualize the direction and strength of magnetic fields, indicating how the field interacts with other magnetic materials.

Front

What is the difference between attracting and repelling magnets?

Back

Attracting magnets have opposite poles facing each other (north to south), while repelling magnets have like poles facing each other (north to north or south to south).

Front

How can you determine the strength of a magnetic field?

Back

The strength of a magnetic field can be determined by the density of magnetic field lines; more lines per unit area indicate a stronger field.

Front

What is a magnetic field?

Back

A magnetic field is a region around a magnet where magnetic forces can be detected and where other magnetic materials experience a force.