yes
A. Compasses typically use a permanent magnet.
a compass is a permanent magnet
A swinging magnet was often used in old-fashioned compasses to indicate direction based on Earth's magnetic field. The magnet would align itself with the Earth's magnetic field, pointing towards the magnetic North Pole.
They use the fact that the earth acts as a giant magnet so that compasses point towards the north pole.
because of the earth's magnetic core
A small magnet that can turn freely is called a compass. Compasses align with the Earth's magnetic field and can be used to find directions such as north, south, east, and west.
A needle magnet is a type of small, strong magnet that is shaped like a needle. It is commonly used for picking up small metallic objects like pins, needles, or screws that are hard to reach or see. Needle magnets are also used in compasses to indicate direction.
A magnet generates a magnetic field that attracts or repels other materials containing iron, nickel, or cobalt. This property allows magnets to be used in a wide range of applications, including compasses, electric motors, and MRI machines.
There's no such thing as a "first magnet". Natural magnets have been around since essentially the big bang.
A compass has both a south pole and a north pole :)
Magnets are used in a variety of applications such as MRI machines in hospitals, speakers in electronic devices, and magnetic locks in doors. They are also used in motors, generators, compasses, and hard drives.
In a sense, the Earth is a natural magnet, with north and south poles effecting compasses. Naturally magnetized piece of the mineral magnetite, commonly known as lodestone, is an example of a natural magnet..