yes
yes
No, stacking magnets does not make them stronger. Magnets have a set strength based on their material and size, and stacking them does not increase this strength.
no
No
Magnets can get stronger by being exposed to strong external magnetic fields that align the magnetic domains within the material. Additionally, heating a magnet above its Curie temperature and then cooling it in the presence of a magnetic field can help increase its strength. Using materials with higher magnetic properties can also lead to stronger magnets.
Yes, storing magnets close to other stronger magnets can cause them to be demagnetized or have their magnetic properties weakened. Additionally, strong magnets can attract each other with such force that they can chip, crack or shatter if not handled carefully.
My answer id they have different shapes and colors.
Yes, because electromagnets can lose their magnetism.
Some magnets are stronger than others, making them harder to pull apart. For strong magnets, you can pull the magnets sideways to get them apart.
Yes (and often are).
Rare earth magnets, such as neodymium magnets, are much stronger than traditional magnets like ferrite magnets. They are also more expensive and are made with elements from the lanthanide series of the periodic table, making them rarer and harder to produce. Rare earth magnets can retain their magnetization over a longer period of time compared to normal magnets.
yes temp does affect the strength of magnets. The cooler the magnet the stronger it gets.