It is for different purposes.
Maybe different sizes and shapes can stick more magnetic. Think it depends more on the use and requirements for the magnets.
Why not? The capacity of being magnetized does not depend on the shape or on the size, but rather on the kind of material.
Magnets also come in different strenghs
Shapes that are the same except for their size are called "similar".
If they are the same shapes but differ only in size, then they are SIMILAR shapes. Otherwise, they are simply different shapes.
For different applications and appliances.
polarity maybe
They are about the size of a bacteria, but they have different shapes.
No, they are the size of uranus ;)
popcorn gets different shapes because as the water in the kernel gets hotter it starts boiling and expands creating different size and shapes popcorns
Similar shapes are the same shape and not the same size but congruent shapes are exactly alike
No, the strength of magnets and electromagnets can vary depending on factors such as the material used, the size of the magnet, and the electric current flowing through the electromagnet. Different magnets can have different strengths based on these variables.