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WorksheetsWeyPhys KS3/4 Magnetism
Total questions: 10
Worksheet time: 5mins
Pick 3 magnetic metals from this list
Magnesium
Aluminium
Iron
Nickel
Cobalt
Which of the following "rules" is true for magnets?
North attracts North
South attracts South
North attracts South
North repels South
What happens if you cut a bar magnet in half?
You get a separate North pole and South pole
You get two new smaller bar magnets.
You get two North poles
You get two South poles
What happens if you hang a magnet on a string and let the oscillations die down?
It points to a random direction.
The North pole points South.
The North pole points north.
The magnet ends up facing East-West
Give 2 ways to destroy the magnetism in a permanent magnet.
Place it on tin foil in the fridge for a day.
Heat it in a Bunsen burner.
Drop it onto the floor seventeen times.
Place it very high up so it feels a weaker gravitational force from Earth.
The paper clips stick to to the magnet because they become...
permanent magnets
demagnetised
induced magnets
electrostatically charged
How can you make the magnetic domains in a magnetic metal line up to make it a magnet?
Heat it strongly so it melts then let it cool facing North-South.
Stroke it repeatedly with another permanent magnet.
Wrap a coil of wire around the metal and pass an electric current through the wire.
All of these
Give 2 ways to increase the strength of an electromagnet
Increase the size of the electric current
Decrease the number of turns of the wire
Increase the number of turns of the wire
Swap the iron core for a copper core
Which way do the arrows point on a magnetic field diagram?
Away from the magnet's South pole and towards its North pole.
Away from the magnet's North pole and towards its South pole.
Towards the centre of the Earth
Towards the Earth's North pole
Why does Earth have a magnetic field?
Because of its radioactive core.
Due to the movement of electrons in its Nickel and Iron core
Because of the copper wiring people have used
Due to the Earth's gravitational pull on all metals
