Magnetic Disks, otherwise known as 'Floppy disks'.
The last generation of these disks were 3 1/2" and used a ridgid plastic case, to contain the magnetic disk within. Not very floppy.
The early versions were 7" and 5" and were contained in soft plastic outer sleeves. These were actually floppy.
True.
true
magnetic disk
A refrigerator magnet is a rectangular object that has a small magnetic field. These magnets are commonly used to display items like photos or notes on a refrigerator or other magnetic surface.
To effectively secure items using strong magnetic strips, ensure the strips are securely attached to a stable surface, such as a wall or cabinet. Place the items on the strips in a way that maximizes contact with the magnets for a strong hold. Additionally, consider using multiple strips for heavier items or extra security.
You can use a magnetic board by placing magnetic items on it such as letters, numbers, or pictures to create different designs or messages. You can also use it as a surface to attach notes, reminders, or drawings using magnets. Magnetic boards are versatile tools that can be used for organization, communication, and creative expression.
Magnetic items must contain elements such as iron, nickel, or cobalt. These elements have unpaired electrons in their outer shells, allowing them to align their magnetic moments and exhibit magnetic properties.
Pretty much any electronics with wires. The metal inside the wires and generally attracted to the magnet. For example, it is a TERRIBLE idea to put a magnet next to or on a computer or computer monitor. It will distort anything and everything inside the computer.
Fridge magnets do not consume electricity on their own, so they do not waste electricity. They are simply decorative items that stick to the front surface of the refrigerator using a magnetic force.
Sorry, but aluminium in any form is non magnetic, meaning that a magnet will not pull anything made of aluminium.
There are two types of magnetic metals, those that are permanently magnetic, and those that become magnetic as a result of an electrical field, i.e. electro-magnets. * Some games such as travel chess have small magnets in the bases of the pieces, to hold them to the metal board. * Cupboard 'catches' can be magnetic. They close on contact, but can easily be released by pulling the door. * Some necklaces have a magnetic fastener. * Magnets are used to pick up magnetic items such as staples, paper clips, pins, * Small magnetic blocks are used to store paper clips on a desk. * Credit and ATM/cash cards have a magnetic strip on one side. It is magnetic because it contains magnetic metal powder in the plastic * Some screwdrivers are magnetized, to hold the screw prior to screwing the screw into wood or other material. * Cathode ray televisions and computer monitors use an electromagnet to direct electrons/pictures to the screen. * VHS tapes and common audio cassettes use magnetic tape, a thin plastic strip coated with a thin layer of magnetic powder in film form. * In computers, floppy disks and hard disks record data on a thin magnetic coating. * Speakers and Microphones have permanent magnets as part of their construction. * Electric motors and generators have combinations of electromagnets and permanent magnets * Refrigerator magnets use magnetic metal to make them stick to the refrigerator. * A manual compass uses a magnetized needle to indicate magnetic North.
The force that helps hold things to fridge doors is magnetism. Magnets on the fridge door create a magnetic field that attracts ferromagnetic materials like iron or steel, allowing items like magnets, notes, or photos to stick to the surface.