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Answer:
1)A magnet is an object (generally a metal) that has a north and south pole, such that opposite poles attract and like poles repel. A magnet contains electrons that have both uneven orbits and uneven spins.Magnets can be found in the simplest or most complex devices you use every day. From home appliances such as the refrigerator, microwave oven and electric fan, to your company's office equipment such as computers and printers. All these devices use magnets.
2)Magnets are used to make a tight seal on the doors to refrigerators and freezers. They power speakers in stereos, earphones, and televisions. Magnets are used to store data in computers, and are important in scanning machines called MRIs (magnetic resonance imagers), which doctors use to look inside people's bodies.
3)Roughly 4,000 years ago, a Greek shepherd named Magnes is said to have been tending his sheep in a region of northern Greece called Magnesia. He took a step and suddenly found that the nails that held his shoe together and the metal tip of his staff were stuck fast to the rock he was standing on!
4)Artificial magnets are magnets made by people. ... An example of a natural magnet is the lodestone, also called magnetite. Other examples are pyrrhotite, ferrite, and columbite. Examples of permanent artificial magnets include refrigerator magnets and neodymium magnets.
5)The Various Shapes of Magnets and Their Uses
Bar Magnets. A magnet's power is focused at the poles and lessens at the sides. ...
Horseshoe Magnets. Horseshoe magnets are just bar magnets bent in a U shape. ...
Disc Magnets. ...
Sphere Magnets. ...
Cylinder Magnets. ...
Ring Magnets.
6)horse shoe magnet has 2 poles
7)Examples of magnetic materials include iron, cobalt, nickel, steel, etc. Materials that are not attracted by magnets are called non-magnetic materials. Examples of non-magnetic materials include rubber, plastic, stainless steel, feather, paper, mica, gold, silver, leather, etc.
8)The ends of a magnet are called its poles. One end is called the north pole, the other is called the south pole. If you line up two magnets so that the south pole of one faces the north pole of the other, the magnets will pull toward each other. This is called attraction
9)The attraction as well as the repulsion of magnets decrease significantly with increasing distance. When two equal magnets touch each other, the attraction between two unequal poles is 5-10% stronger than the repulsion of equal poles. ... In a single magnet, the molecular magnets are aligned sort of parallel to each other.
10)Always wear safety goggles when handling large magnets.
Always wear gloves when handling magnets to prevent pinching.
Children should NEVER be allowed to play with NEODYMIUM magnets.
Keep magnets at least 20cm away from sensitive electronic and storage devices.
Explanation:
If you are in 6th standard the 10th question is much simpler
Try to look for these answers in the Text book all are given their
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