Magnets and charges

A magnet will be attracted to the objects which are made of ____________.

• steel and iron

• steel and copper

• aluminum and gold

• copper and brass

Which of the following is true about a bar magnet that is divided into two pieces?

• Two new bar magnets were made.

• The magnetlost its magnetism.

• Magnetic poles were separated.

• The magnet increased its magnetism.

Ferromagnetic materials that retain the magnetism induced in them become permanent magnets.

• True

• False

Which of the following object is/are magnetic?

• coin

• nickel

• rubber

• leather

What is the arrangement of the induced poles in the pieces of iron?

• 
• 
• 
• 

The magnetic field of a magnet points from the north pole of the magnet to the south pole.

• True

• False

All statements are true except__________.

• like poles attract

• magnetism can be induced

• magnetic poles cannot separated

• unlike poles attract 

A _______________ is a current-carrying coil of wire with many loops.

• magnet

• electromagnet

• solenoid

• compass

Increasing the number of coils in an electromagnet will _________ the power of the magnet.

• decrease

• increase

• not affect

The area of magnetic force around a magnet is known as its ____________.

• magnetism

• magnetic current

• magnetic field

• electric current