Magnets
True or False: Like poles attract
False: Like poles repel
What happens when you turn an electromagnet off
It loses it's magnetic field
Where would I find the magnetic north pole of earth
The geographical south pole (True South)
What can you use to view the magnetic field of a magnet
Iron Filings
How can I increase the strength of an electromagnet
Increase the number of coils
Why does a compass point North
Attracted to the Magnetic North of earth (Southern pole of a magnet)
Does the magnetic field of a magnet go towards the North or South Pole?
Towards the North pole
What happens if I increase the voltage of the current in the wire of an electromagnet
Strength of the magnetic field increases
How does the earth's magnetic field protect us.
Blocks the sun's radiation
How do I create a permanent magnet
Magnetise a 'hard' material like steel
Which material is the worst choice for the core of an electromagnet, Iron or Steel?
Steel
Is the earth's magnetic field strongest or weakest at the equator
Weaker
What happens to the direction of the compass needle if the current in a wire is switched
It points in the opposite direction
Name three things that can be used to make a magnet
Movement of the molten iron core