Magnets

What is a unique characteristic of the yellow smart magnets demonstrated?

• They always attract each other regardless of distance.

• They repel each other at a distance but attract when brought very close.

• They only repel each other.

• They can be turned to change their magnetic poles.

How do the red smart magnets behave, and what scientific concept do they model?

• They repel at all distances, modeling the Pauli Exclusion Principle.

• They attract at all distances, modeling gravitational forces.

• They attract at long distances but repel at close distances, modeling intermolecular forces.

• They can be turned to switch between attraction and repulsion, modeling quantum entanglement.

What special property does the orange smart magnet exhibit when placed on a thin metal plate?

• It becomes a conventional magnet.

• It repels all metallic objects.

• It can shield its magnetic field, preventing attraction to objects on the other side of the plate.

• It amplifies the magnetic field through the plate.

What does magnetic viewing film reveal about a magnet's poles?

• It shows the strength of the magnetic field.

• It shows the magnetic field lines as bright lines.

• It shows the transition between North and South poles as a bright spot, and the poles themselves as dark spots.

• It indicates the temperature of the magnet.

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A small magnet is brought near a smart magnet. It is initially repelled at a distance but then attracted when brought very close to the center. What does this indicate about the smart magnet's poles?

• The smart magnet has only one pole.

• The outer edge and the center of the smart magnet have different magnetic polarities relative to the small magnet.

• The smart magnet is losing its magnetism.

• The small magnet is not a true magnet.

What is a key characteristic of the magnetic field lines of a smart magnet compared to a conventional magnet?

• They extend much further into space.

• They form large, sweeping loops.

• They stay very close to the magnet's surface.

• They are always oriented from top to bottom.

How are smart magnets typically created to have their unique magnetic patterns?

• By heating and cooling them in specific molds.

• By using a strong electromagnet to imprint the desired field.

• By physically carving the magnetic material into patterns.

• By combining multiple small, conventional magnets.

What happens when two smart magnets with alternating North and South poles are brought together, as demonstrated with the refrigerator magnets?

• They strongly repel each other at all distances.

• They attract each other only if perfectly aligned.

• They exhibit a "geared" effect, clicking into place at certain increments.

• They become demagnetized due to conflicting fields.