NEW
Font size
WorksheetsCAX IGCSE PHYSICS magnetism
Total questions: 25
Worksheet time: 13mins
Which statement about a magnet is correct?
A magnet attracts a gold rod.
A magnet does not attract a plastic rod.
A magnet never repels another magnet.
A magnet sometimes repels an unmagnetised nickel rod.
Which statement about magnetism is correct?
An unmagnetised iron bar becomes magnetised when it is placed near a magnet.
An unmagnetised steel bar can be magnetised by passing a current through it.
The direction of magnetic field lines is from an S-pole to an N-pole.
The N-poles of two magnets attract each other.
In which pair are both materials magnetic?
aluminium and copper
copper and iron
iron and steel
steel and aluminium
The diagram shows the magnetic field around two bar magnets.
Which diagram shows the poles of the magnets?
The diagram shows apparatus that can be used to make a magnet.
Which metal and which power supply are used to make a permanent magnet?
metal = iron; power supply = 6 V a.c.
metal = iron; power supply = 6 V d.c.
metal = steel; power supply = 6 V a.c.
metal = steel; power supply = 6 V d.c.
A wire perpendicular to the page carries an electric current in a direction out of the page. There are four compasses near the wire.
Which compass shows the direction of the magnetic field caused by the current?
A
B
C
D
An electromagnet with a soft-iron core is connected to a battery and an open switch. The soft-iron core is just above some small soft-iron nails.
The switch is now closed, left closed for a few seconds, and then opened.
What do the soft-iron nails do as the switch is closed, and what do they do when the switch is then opened?
as switch is closed - nails jump up; as switch is opened - nails fall down
as switch is closed - nails jump up; as switch is opened - nails stay up
as switch is closed - nails stay down; as switch is opened - nails jump up
as switch is closed - nails stay down; as switch is opened - nails stay down
Which action will demagnetise a magnetised piece of steel?
Cool it in a freezer for several hours.
Hit it repeatedly with a hammer.
Put it in a coil carrying a direct current (d.c.).
Put it near an unmagnetised piece of iron.
Which procedure may be used to demagnetise a steel bar?
cooling it in a freezer for several hours
earthing it with a copper wire for several seconds
removing it slowly from a coil carrying an alternating current (a.c.)
rubbing it in one direction with a woolen cloth
Which statement about a permanent bar magnet is correct?
It is made from a soft magnetic material.
It repels a non-magnetic material.
Its field lines cross each other where the magnetic field is strong.
Its N-pole repels the N-pole of another magnet.
