Fun with magnets - class 6

How many time do you stroke the magnet to get the single touch method?

• 30

• 33

Is the single touch method used frequently?

• Yes

• No

What makes a magnet get demagnetized?

• If it is hammered

• If it is heated

• Both

Magnets tend to become weaker after some time of their poles are left free what is this known as?

• Demagnetization

• Self - Demagnetization

Self - demagnetization is done by bar magnets being kept in pairs separated by a piece of wood with unlike poles alongside each other.

• True

• False

What are the 2 poles of a magnet?

• south and west
• north and east
• north and south

A magnet cannot be demagnetized by:

• hammering

• heating

• dropping on a hard surface

• boiling

Which object has a magnetic keeper?

• Horseshoe

• Steel water bottle

• A spoon