magnetism

magnetism

By MARIYA M

Multiple Choice

The south pole of a bar magnet and the north pole of a U-shaped magnet will ……………….

• attract each other

• repel each other

• neither attract nor repel each other

• None of the above

Multiple Choice

It is believed that the had known the property of magnet even before 200 BC.

• Indians

• Japanese

• Chinese

• Americans

Fill in the Blanks

A magnet has …………… magnetic poles.

Multiple Choice

.....................is the ore of iron which is the strongest natural magnet.

• Iron oxide

• Iron sulphide

• Ferrite

• Columbine

Multiple Choice

Who laid the foundation for magnetism and suggested that the Earth has a giant bar magnet?

• Einstein

• Newton

• Galileo

• William Gilbert

Fill in the Blanks

…………… are used to lift heavy iron pieces.

Multiple Choice

A magnet attracts ………………

• wooden materials

• any metal

• copper

• iron and steel

Multiple Choice

A compass is used for ………………

• plotting magnetic lines

• detection of magnetic field

• navigation

• All of these

Multiple Choice

MRI stands for………………

• Running Image

• detection of magnetic field

• navigation

• Magnetic Radar Imaging

Draw

The shape of the Earth’s magnetic field resembles that of an imaginary ………………