Magnets and their effects

the paper clip is flying why ?

• Black magic

• there is magnet under the cup

• there is water in the cup

• the water in the cup is hot

What will happen if you keep a magnetic compass near a bar magnet?

• The needle will deflect

• The needle will reverse the direction

• The needle will start rotating

• The needle will not show any movement.

3. Magnets attract the substances made of:

• magnetic substances

• non magnetic substances

• wood

• none of them

__________ is the sure test for magnetism

_________ poles repel each other

the property of a magnetic materials to attract to magnet is know. As ____________ of the magnet

A Magnetic compass is built on _______

A- who found magnet ?

B- Where ?

• a- magnes

  b- magnesia

• a- ferromagnet

  b-magnet

• a-magnetic

  b- magnetism

• a-Masen

  b- Magnesia

Attraction is seen between the poles of two bar magnets in the case of

• N-pole of one magnet with N-pole of other

• N-pole of one magnet with S-pole of other

• S-pole of one magnet with S-pole of other

• all of these cases will show attraction

What should the compass needle be made of?

• Brass

• Iron

• Aluminium

• Silver