Iron is magnetic
A compass saw is used to make curved cuts
silva
A compass is used to make a perfect circle.
Some are possible, others are not.
you first measure it on your protractor correctly then you use it:)
Iron reacts with oxygen and water to form rust. Not a good thing for a compass.
It is magnetic and would throw off your little dial
Iron is a poor choice for a compass housing because it is easily magnetized, which can interfere with the compass needle's ability to point accurately to magnetic north. Iron is also prone to corrosion, which can affect the compass's functioning over time. Using non-magnetic and non-corrosive materials, such as brass or aluminum, would be more ideal for compass housings.
Iron is a magnetic material, which could interfere with the functioning of the compass needle by causing deviation from true north. This is known as magnetic interference. To prevent this issue, materials with low magnetic permeability, such as aluminum or non-magnetic stainless steel, are preferred for compass housing.
Half of the needle is painted red to indicate the direction of North. The red orienting arrow is marked on the floor of the housing. It rotates with the housing when the dial is turned. You use it to orient a compass to a map.
It could not be used because it attracts magnets and a compass is a specialist form of magnet, utilising the magnetic properties of the earth to give a reading. Compass housings are invariably made of brass, aluminium or plastic.
Iron can make a compass go haywire as it can create magnetic interference. When a compass is near iron or magnetic objects, it can disrupt the Earth's magnetic field that the compass relies on for accurate readings.
A small iron nail
magnet iron
Are you asking what material is a compass needle made from? It that is your question, you need to keep in mind that the material used must have magnetic properties. Research the Iron Triad from the Periodic Table.
The main materials used to make a magnetic compass are a magnetized needle, usually made of steel or iron, and a housing or casing to protect the needle. The casing may be made of materials like plastic, glass, or metal. Additionally, some compasses have a fluid-filled chamber to dampen the movement of the needle and improve accuracy.
Compass needles are typically made from magnetized materials such as iron or steel. These materials are able to become magnetized and align with the Earth's magnetic field, allowing the compass needle to point north.