Q:What are magnetic materials and what are their characteristics?

The magnetic material is a kind of strong magnetic material, functional material is ancient and very wide range of uses, and the magnetic material as early as 3000 years ago has been recognized and applied, such as Chinese ancient natural magnet as a compass. Modern magnetic materials have been widely used in our daily life, such as the permanent magnetic material is used as the core material used in motor, transformer, magnetic disc memory used as magnetic recording by computer, such as floppy disks.

Q:Does a magnet warp the space-time fabric surrounding it?

Magnetic forces act only upon magnetic materials like iron and nickel where as Gravity is due to mass.

Q:How are soft magnetic materials and hard magnetic materials classified?What's the difference between them?

Hard magnetic materials: large coercivity (Hc) (>102A/m), Br high remanence hysteresis, large area, big loss. Such as tungsten steel, carbon steel, aluminum nickel cobalt alloy. Purpose: the hysteresis loop width fertilizer after magnetization can keep strong magnetic long, suitable for the production of magnetoelectric meters of permanent magnet the headset, permanent magnet, permanent magnet loudspeaker.

Q:is there anything one can put in front or at the back of a permanent magnet which can reduce or totally remove the magnetic force of the magnet

in electromagnet you can, but in a permanent magnet I don't know of any way , I think hitting it into something hard can, but it could also destroy its magnetic field.

Q:Explain the formation and symmetry of the magnetic stripes found on either side of the mid-ocean ridge system.

The magnetic stripes are the latent magnetic signature of mid ocean crust spreading. There is an equal stripe on either side of the spreading center to match each significant release of crustal material.

Q:What is the difference between magnetic and non magnetic steel?

Magnetic steel is attracted by magnets. Non-Magnetic steel is not. Steel is an alloy made of Iron and other minerals. I know if there is too much carbon the magnetivity of the steel goes down quickly. Other elements can make steel non magnetic as well.

Q:i already know some but i really wanted to ask if pens are allowed inside the plane. i want to bring ballpens and pencils inside the plane.the pencils are not that sharp but they are sharpened. it‘s really confusing so i don‘t know if i will bring them or not.

Your good to go I bring them on flights all the time. Just try to use pens with the least amount of metal you can.

Q:can magnets repel or attract through lead?

Materials that are attracted to a magnet are called magnetic materials. These include iron, cobalt, nickel, and some rare earth elements. It should be noted that all these materials are metals, but not all metals are magnetic. Aluminum, copper, lead, gold, and silver are examples of metals that are not attracted to a magnet. Materials that are not attracted to a magnet are non-magnetic Depending on the thickness of the led and strength of the magnet can determine whether or not it can attract another magnet or attracted metal on the other side of the led. I know that led blocks out most radiation, I never personally did an experiment on whether or not led can deflect or absorbe magnetic waves.

Q:What are the characteristics of the permeability of non ferromagnetic materials and ferromagnetic materials?

If you want to know very detailed information, you can search the Baidu library for "magnetic physics", and there will be a very detailed introduction.If you have any questions, please come to me at the forum. If you are busy, please accept the answer.

Q:any meterial, which is thin but can seperate two permanent magnets, without affecting the magnetic field.

There is no such material that can reflect back or observe the magnetic force.