1/16/09 Science Test
Terms
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- low
- when the voltage is low the magnetic field is
- increases
- what happens to the magnetic field strength if there is iron in a current carrying wire
- Oersted
- what is the unit for magnetic field strength
- solenoid
- what is the core of an electromagnet called
- opposite
- what can an electric motor and generator be called
- reverses
- what happens to the magnet field if the electric current switches
- electricity
- what causes magnetism
- out of north and into south
- what direction does the magnetic field go (around a magnet)
- magnetosphere
- region around world where magnetic field is expirienced
- circle wire in closed loops
- who do magnetic field lines go around a current carrying wire
- magnetic declination
- area between geographic and magnetic poles
- steel, cobalt, iron
- what are the 3 things that are temporary magnets
- Australia
- what country is the magnetic North Pole next too
- north-south
- wwhat is the direction of the magnetic field outside the magnet
- parallel (high R)
- is an voltmeter connected in series or parallel
- series (low R)
- is an ammeter connected in series or parallel
- William Gilvert
- who was the first person to say that Earth is a big magnet
- magnetic and electric fields
- moving electric charges interact with
- electromagnet
- something that is not a magnet with out electricity
- Hans Christian Oersted
- who was the first person to discover that electricity and magnetism are related
- moving electric charge
- what is the source of all magnetism