Magnets Flashcards
At which part of a magnet are the magnetic forces strongest
The poles of the magnet
What happens when two magnets are brought close to each other
They exert a force on each other
What type of force is exerted if two like poles of a magnet are brought near each other
A repulsive non contact force
What type of force is exerted if two unlike poles of a magnet are brought near each other
An attractive non contact force
What is the difference between a permanent magnet and an induced magnet
A permanent magnet produces its own magnetic field
An induced magnet becomes magnetic when placed in a magnetic field
What type of force does induced magnetism always cause
A force of attraction
What happens when an induced magnet is removed from a magnetic field
Loses most/all of its magnetism
What is a magnetic field
The region surrounding a magnet where another magnet or magnetic material experiences a non contact force
Give 4 examples of magnetic materials
Iron
Steel
Cobalt
Nickel
What can always be said about the force between a magnet and a magnetic material
it is always attractive
How does the strength of a magnetic field alter as you move further away from the magnet producing it
The magnetic field strength decreases the further you move away
In what direction does a magnetic field point
North and south
What does a magnetic compass contain
a small bar magnet that points in the direction of the earths magnetic field
What is an induced magnet
An object that becomes a magnet when it is placed in a magnetic field
what is the tool used to find out the direction of a magnetic field
A magnetic compass
