6b: Magnetism

Fill in the blanks: __________ poles attract.

• Opposite
• Like
• north
• south

Fill in the blanks: __________ poles repel.

• Like
• Opposite
• north
• south

Fill in the blanks: Hard magnetic materials are _________ to magnetise and ________ to demagnetise.

• Hard, hard
• hard, easy
• easy, hard
• easy, easy

Fill in the blanks: Soft magnetic materials are _________ to magnetise and ________ to demagnetise.

• Hard, hard
• hard, easy
• easy, hard
• easy, easy

Fill in the blanks: Magnetic fields point from ________ to _________.

• North (to) south
• south (to) north
• positive (to) negative
• negative (to) positive

Which of these materials is magnetically hard?

• Steel
• Iron
• Aluminium

Which of these materials is magnetically soft?

• Steel
• Iron
• Aluminium

Fill in the blanks: A force is produced when magnetic fields i___________.

• interact
• intersect
• intersperse
• intertwine

Outside of a magnet, magnetic field lines run …

• from north to south
• from south to north
• forwards
• backwards
• from positive to negative

A hard magnetic material …

• can be magnetised
• cannot be magnetised
• retains its magnetism
• does not retain its magnetism