AQA electromagnetism

A permanent magnet has what properties

• Produce their own magnetic fields

• Change magnetic field strengths

• Can attract and repel other magnets

• Can be switched off an d on

Opposite poles on a magnet will

• Attract

• Repel

An induced magnet has what properties?

• Can only attract magnet

• Can attract and repel magnets

• Lose their magnetism when removed from a magnetic field

• Are only magnetic when in a magnetic fields

• Are made of all metals

Magnetic fields go in the direction?

• South to North

• North to South

• They don't have fields

Earth's geographical north is magnetic south - True or False?

• True

• False

If a compass points to Earth's magnetic south, what does this tell us about the compass needle tip?

• The needle North seeking

• The needle is South seeking

• The needle is indifferent

A coil of wire with electricity travelling through it is called a what?

Solenoids usually have what added through the middle to make them stronger?

The right hand grip rule will tell us what?

Flemming's left hand rule tell us what 3 things?

• Direction of force

• Direction of voltage

• Direction of current

• Magnetic field

• Magnetic field strength