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 = steel; power supply = 6 V d.c.

metal = iron; power supply = 6 V a.c.

metal = iron; power supply = 6 V d.c.

metal = steel; power supply = 6 V a.c.

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?

Hit it repeatedly with a hammer.

Cool it in a freezer for several hours.

Put it in a coil carrying a direct current (d.c.).

Put it near an unmagnetised piece of iron.

A student investigates the force on a bar magnet placed near a current-carrying coil. She carries out three different experiments. In experiment 1, the magnet is attracted to the coil. Which row shows what happens in the other two experiments?

experiment 2: magnet repelled; experiment 3: magnet attracted

experiment 2: magnet attracted; experiment 3: magnet attracted

experiment 2: magnet attracted; experiment 3: magnet repelled

experiment 2: magnet repelled; experiment 3: magnet repelled

Three cores of different metals, P, Q and R, are placed inside identical coils of wire. At least one of the metals is non-ferrous. The cores are held above some iron nails. The top three diagrams show what happens when there is a current in the coils. The three diagrams in the second row below show what happens when the current is then switched off in each coil. Which row identifies whether the core metals are ferrous or non-ferrous?

ferrous = Q and R; non-ferrous = P

ferrous = P; non-ferrous = Q and R

ferrous = P and Q; non-ferrous = R

ferrous = R; non-ferrous = P and Q

Which procedure may be used to demagnetise a steel bar?

rubbing it in one direction with a woolen cloth

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.)

Which statement about a permanent bar magnet is correct?

Its N-pole repels the N-pole of another magnet.

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.

The diagram shows two magnets and two iron rods placed in a line. Which magnetic poles are induced at the ends J and K of the iron rods?

pole induced at end J = N; pole induced at end K = S

pole induced at end J = N; pole induced at end K = N

pole induced at end J = S; pole induced at end K = N

pole induced at end J = S; pole induced at end K = S

The diagram shows two bar magnets, stored with metal keepers across the ends. The keepers help to keep the magnets magnetised. The material used for the keepers becomes strongly magnetised when placed in contact with the magnets, but does not remain magnetised when taken away from the magnets. What is a suitable metal to use for the magnets and what is a suitable metal to use for the keepers?

metal for magnets = steel; metal for keepers = iron

metal for magnets = iron; metal for keepers = iron

metal for magnets = iron; metal for keepers = steel

metal for magnets = steel; metal for keepers = steel

Igcse Magnetism

Authored by Charles Martinez

Physics

9th - 10th Grade

NGSS covered

Used 17+ times

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20 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A student wishes to make a permanent magnet. She has an iron rod and a steel rod.
Which rod should she use to make the permanent magnet, and is this rod a hard magnetic material or a soft magnetic material?

rod = iron; type of magnetic material = hard

rod = iron; type of magnetic material = soft

rod = steel; type of magnetic material = hard

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Two nickel bars are placed close to the N-pole of a bar magnet. The nickel bars become magnetised.
Which row states the pole induced at P, the pole induced at Q, and the type of magnetic force between P and Q?

pole induced at P = N; pole induced at Q = S; force between

P and Q = attraction

pole induced at P = N; pole induced at Q = S; force between

P and Q = repulsion

pole induced at P = S; pole induced at Q = N; force between

P and Q = attraction

pole induced at P = S; pole induced at Q = N; force between

P and Q = repusion

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A student wishes to make a permanent magnet. She has an iron rod and a steel rod.
Which rod should she use to make the permanent magnet, and is this rod a hard magnetic material or a soft magnetic material?

rod = iron; type of magnetic material = hard

rod = iron; type of magnetic material = soft

rod = steel; type of magnetic material = hard

rod = steel; type of magnetic material = soft

Tags

NGSS.MS-PS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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.

Tags

NGSS.MS-PS2-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In which pair are both materials magnetic?

aluminium and copper

copper and iron

iron and steel

steel and aluminium

Tags

NGSS.MS-PS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The diagram shows the magnetic field around two bar magnets.
Which diagram shows the poles of the magnets?

Tags

NGSS.MS-PS2-3

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Igcse Magnetism

Which statement about a magnet is correct?

A student wishes to make a permanent magnet. She has an iron rod and a steel rod.
Which rod should she use to make the permanent magnet, and is this rod a hard magnetic material or a soft magnetic material?

Two nickel bars are placed close to the N-pole of a bar magnet. The nickel bars become magnetised.
Which row states the pole induced at P, the pole induced at Q, and the type of magnetic force between P and Q?

A student wishes to make a permanent magnet. She has an iron rod and a steel rod.
Which rod should she use to make the permanent magnet, and is this rod a hard magnetic material or a soft magnetic material?

Which statement about magnetism is correct?

In which pair are both materials magnetic?

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?

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?

Which group contains only non-ferrous metals?

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Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Physics

Igcse Magnetism

Which statement about a magnet is correct?

A student wishes to make a permanent magnet. She has an iron rod and a steel rod. Which rod should she use to make the permanent magnet, and is this rod a hard magnetic material or a soft magnetic material?

Two nickel bars are placed close to the N-pole of a bar magnet. The nickel bars become magnetised. Which row states the pole induced at P, the pole induced at Q, and the type of magnetic force between P and Q?

A student wishes to make a permanent magnet. She has an iron rod and a steel rod.Which rod should she use to make the permanent magnet, and is this rod a hard magnetic material or a soft magnetic material?

Which statement about magnetism is correct?

In which pair are both materials magnetic?

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?

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?

Which group contains only non-ferrous metals?

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Physics

A student wishes to make a permanent magnet. She has an iron rod and a steel rod.
Which rod should she use to make the permanent magnet, and is this rod a hard magnetic material or a soft magnetic material?

Two nickel bars are placed close to the N-pole of a bar magnet. The nickel bars become magnetised.
Which row states the pole induced at P, the pole induced at Q, and the type of magnetic force between P and Q?

A student wishes to make a permanent magnet. She has an iron rod and a steel rod.
Which rod should she use to make the permanent magnet, and is this rod a hard magnetic material or a soft magnetic material?

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?

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?