Front

What is magnetic force?

Back

Magnetic force is the attraction or repulsion that arises between electrically charged particles due to their motion. It is a fundamental force that acts at a distance.

Front

What happens to potential energy when a magnet is pulled away from a magnetic surface?

Back

The potential energy increases as the magnet is pulled away from the magnetic surface because work is done against the magnetic force.

Front

How can you identify the north pole of a magnet?

Back

The north pole of a magnet is identified by its attraction to the south pole of another magnet or by its repulsion from the north pole of another magnet.

Front

What is the relationship between magnetic field strength and distance from the magnet?

Back

The magnetic field strength is stronger as you get closer to the magnet and weaker as you move farther away.

Front

What are magnetic field lines?

Back

Magnetic field lines are imaginary lines that represent the direction and strength of a magnetic field. They emerge from the north pole and enter the south pole.

Front

What happens to magnetic field lines when the strength of a magnet increases?

Back

When the strength of a magnet increases, the magnetic field lines become closer together, indicating a stronger magnetic field.

Front

What is the role of Earth's magnetic field in protecting the planet?

Back

Earth's magnetic field protects the planet from solar wind and cosmic radiation by deflecting charged particles away from the atmosphere.

Front

What is a magnetic pole?

Back

A magnetic pole is one of the two ends of a magnet where the magnetic force is strongest. Every magnet has a north pole and a south pole.

Front

What is the effect of like and unlike magnetic poles?

Back

Like magnetic poles repel each other, while unlike magnetic poles attract each other.

Front

What is the significance of the solar wind's electrical charge in relation to Earth's magnetic field?

Back

The electrical charge of particles in the solar wind interacts with Earth's magnetic field, allowing the field to influence the movement of these charged particles.