Pre - test for GEMS Review

Materials that are attracted by magnets and can be converted into magnets are called

• non - magnetic substances

• magnetic Substances

• magnetite

The pull or push is exerted by a magnet on magnetic substances is called

• Poles

• magnetic force

• cylinderical

• non - magnetic force

Choose the correct uses of magnets

• Electric meters

• refrigerator doors

• automobiles

• pick plastic

What is right answer of DEMAGNITISATION OF MAGNETS

• Rough drop

• hammering

• heating

• all of them

Strong magnets are made up of copper and cobalt.

• True

• False

Instrument used for navigation

• Magnets

• Magnetic Compass

• Iron

• Compass

Each piece of magnet will have how many poles

• 4

• 3

• 1

• 2

Magnetism was first discovered in iron ore called

• Iron

• Magnetite

• Magnets

• Copper

What are magnets that always a have magnetic field called?

• Permanent Magnet

• Artificial Magnet

• Primary Magnet

• Temporary Magnet

What will happen when these magnets are brought close together?

• They will attract each other.

• They will repel each other.

• They will stay the same.

• Both magnets will turn to the right