Magnitism Flashcards
Effect of north side of bar magnet
Attract + repel
Effect of south side of bar magnet
Repel + attract
What is an independent variable
The thing that you are changing each time
What is the dependent variable
What changes because of the independent variable
Magnetic metals include
Iron . Cobalt. Nickel.steel
Anti magnetic metals include
Silver. Aluminium. Copper
What do like poles do
Repel
What to opposite poles do
Attract
How do you induce a pole?
Temporary piles must be induced by rubbing against an unmagnetised material
Distance in magnets?
The further away the weaker the force the closer the stronger the magnetic force
How do you test for magnetism?
Bring any pole of a bar magnet to an object if one side attracts and the other repels the object is magnetic.
What is the magnetic field?
The space around a magnet where forces are felt
What is a compass?
A compass is a bar magnet that Ka able to spin so it lines up with the magnetic field lines
How do you make a permanent magnet?
Take a magnetic material and stroke it I one direction against the north of a magnet
How to make temporary magnet?
Induce the magnet
What are domains?
Group of atoms with magnetic poles that face random directions often by being heated or hit repeatedly
What is the name of the theory which explains why there are poles inside a magnetised needle?
Domain theory
What could be done to turn the atoms from this ➡️➡️➡️➡️➡️ to this ➡️⬅️↘️↙️⬆️↖️➡️↘️⬅️↙️
Hammering or heating the domains
