GEOLOGY

EARTH SCIENCE

MAGNETISM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A magnet is ____
A
To push away
B
A force created by magnets that pulls some metals
C
To Pull towards
D
An object able to pull some metals towards itself
Explanation: 

Detailed explanation-1: -A magnet is a rock or a piece of metal that can pull certain types of metal toward itself. The force of magnets, called magnetism, is a basic force of nature, like electricity and gravity. Magnetism works over a distance. This means that a magnet does not have to be touching an object to pull it.

Detailed explanation-2: -Specifically, they stick to ferromagnetic materials like iron and things that contain iron, such as steel. This includes everything from your car’s steel body to your refrigerator door. They’re also attracted to nickel and cobalt, and a few other rare-earth elements.

Detailed explanation-3: -Magnets are objects, which can attract, or pull, on some metals, like iron and steel. If you rub a piece of steel with a strong magnet, the piece of steel will because a magnet too. It has become magnetized. Other metals, like copper or gold, are not attracted to magnets.

Detailed explanation-4: -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. If you line the magnets up so that two of the same poles face each other, the magnets will push away. This is called repulsion.

Detailed explanation-5: -This is because magnets attract materials that have unpaired electrons that spin in the same direction. In other words, the quality that turns a metal into a magnet also attracts the metal to magnets. Many other elements are diamagnetic-their unpaired atoms create a field that weakly repels a magnet.

There is 1 question to complete.