Magnets
Magnets
- A magnet is an object that attracts certain metals.
- Magnets attract iron, steel, nickel, and cobalt.
- Every magnet has two poles: North and South.
- Opposite poles attract each other.
- Like poles repel each other.
- Magnets create an invisible magnetic field around them.
- Magnetic force can act without touching an object.
- Permanent magnets stay magnetic for a long time.
- Temporary magnets become magnetic only for a short time.
- Electromagnets work using electricity.
- Magnets are used in compasses to find directions.
- Magnets are found in speakers, motors, and generators.
- The Earth behaves like a giant magnet.
- Magnets can pass their force through materials like paper, plastic, and glass.
- Magnets make many everyday machines and devices work efficiently.