Magnet Basics
What are the two ends of a magnet called?
North Pole and South Pole
What happens when a north pole is brought near a south pole?
They attract
What classroom material did we use to see/visualise magnetic field fields of bar magnets?
Iron filings
What object did we use to make a temporary magnet?
Iron nail
What instrument uses Earth's magnetic field to find direction?
Compass
Name ONE type of metal that can be made into a magnet.
Iron, nickel or cobalt
What happens when two north poles are brought together?
They repel
Are magnetic fields visible or invisible with the naked eye?
Invisible
What object did we stroke along the nail?
A bar magnet
Is a compass needle magnetic?
Yes
Magnets can attract some metals but not all metals. What type of materials do magnets attract?
Magnetic materials (iron, nickel, cobalt)
What happens when two south poles are brought together?
They repel
What happened to the iron filings when placed near a magnet?
They lined up along the magnetic field
What could the nail pick up after being magnetised?
paperclips
Earth behaves like one giant ________.
Bar Magnet
What is the name of the invisible area around a magnet where magnetic forces act?
Magnetic field
Two magnets push away from each other. Are opposite or like poles facing?
Like poles
Why do iron filings help us see a magnetic field?
The filings become temporarily magnetised and align with the field
Was the nail a permanent or temporary magnet?
Temporary magnet
What metal in Earth's core helps create Earth's magnetic field?
Iron
Explain why a wooden ruler cannot become a magnet.
Wood is not a magnetic material and does not have magnetic domains that can align.
A north pole is facing another magnet and they repel. Which pole must be facing it?
North Pole
A student spreads iron filings around a magnet and notices the filings form curved lines. What do these lines represent?
The shape and direction of the magnetic field
What happened to the magnetic domains inside the nail?
The magnetic domains aligned in the same direction
Why does a compass needle point north?
It aligns with Earth's magnetic field