GEOLOGY

EARTH SCIENCE

MAGNETISM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which would be attracted to a magnet?
A
a paper clip
B
a copper penny
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Magnets have the ability to attract certain metals like iron and steel. Metal paper clips are made from steel and should be attracted by a magnet.

Detailed explanation-2: -Magnets attract paper clips because magnets have a magnetic field, which creates a force, that pulls on other ferromagnetic materials. A paper clip is usually made of steel wire. Steel is an alloy of iron and carbon. Iron is a ferromagnetic material that is attracted by magnets.

Detailed explanation-3: -Magnetic materials are those which are attracted to a magnet. Examples of such materials include iron, nickel, and cobalt, etc. whereas materials like plastic and wood are non-magnetic.

Detailed explanation-4: -Paperclips are not naturally magnetic, so, on their own, they will not stick together to form a chain. However, by using a magnet the paperclips can become temporarily magnetized. The steel in a paper clip can be easily magnetized but will lose this magnetism quickly.

Detailed explanation-5: -If the pole of the magnet is changed, the paperclip also swaps sign (from north to south, or vice versa), so the force remains attractive. This is why both ends of a magnet can attract a paperclip . . .

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