Magnetism

Front

Four plotting compasses are placed in the magnetic field of two identical bar magnets. Which compass is pointing in the wrong direction? Options: A, B, C, D.

Back

D

Front

A magnet will be attracted to the objects which are made of ____________. Options: steel and iron, steel and copper, aluminum and gold, copper and brass

Back

steel and iron

Front

Which of the following is not a characteristic of magnetic field lines?

• Magnetic field lines begin from North Pole to South Pole.
• Magnetic field lines do not intersect.
• The strength of magnetic field lines is indicated by the spacing of lines.
• Magnetic field lines always form open loops.

Back

Magnetic field lines always form open loops.

Front

Two iron nails hang from a bar magnet. Which diagram shows the magnetic poles induced in the nails?

Back

Front

The north pole of a bar magnet is placed next to end P of an iron bar PQ. What magnetic poles are induced in the iron bar?

Back

C

Front

What happens when a bar magnet is divided into two pieces?

Back

Two new bar magnets were made.

Front

Do ferromagnetic materials that retain the magnetism induced in them become permanent magnets?

Back

True

Front

How will you describe magnetism?

Back

A kind of force

Front

Which of the following object is/are magnetic?

coin

,

nickel

,

rubber

,

leather

Back

nickel

Front

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

Back