Demagnetization

When a magnet loses its magnetic properties.

• demagnetization

• electromagnetism

• force

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

Tags

NGSS.MS-PS2-3

A magnet cannot be demagnetized by:

• hammering

• heating

• dropping on a hard surface

• boiling

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What is the process called when a magnet loses its magnetic properties?

• Demagnetization

• Magnetization

• Polarization

• Electrification

Tags

NGSS.MS-PS2-3

Which of the following can cause a magnet to become demagnetized?

• Heating

• Cooling

• Submerging in water

• Exposing to sunlight

What happens to a magnet when it is repeatedly dropped on a hard surface?

• It becomes demagnetized

• It becomes stronger

• It changes polarity

• It remains unchanged

Which method is NOT a way to demagnetize a magnet?

• Hammering

• Heating

• Cooling

• Storing with opposite poles together

Tags

NGSS.MS-PS2-3

What is the effect of heating a magnet above its Curie temperature?

• It becomes demagnetized

• It becomes stronger

• It changes color

• It becomes radioactive