Shared Flashcard Set

Details

Quiz 3
N/A
22
Physics
10th Grade
05/09/2011

Additional Physics Flashcards

 


 

Cards

Term
Magnet
Definition
Is a material that produces a magnetic field
Term
The magnetic field of a magnet is created by the?
Definition
Movement of electrons
Term
Magnetic fields have directions defined as?
Definition
North & South
Term
The direction of a magnetic field is defined as?
Definition
The direction that the North pole of a compass would point when placed in the field
Term
Locations where this field eneters a material and are the strongest magnetic points.
Definition
Poles
Term
An object that has a magnetic pole at each end with opposite directions.
Definition
Dipole
Term
Every magnet has atleast one ___ ____ and one ___ ____?
Definition
North pole, South pole
Term
Magnetic lines of force
Definition
Emerge from the pole of a magnet and enter the south pole. Arrows always points from north to south.
Term
These magnets are permanient in the sense that once they have been magnetized they retain a certain degree of magnetism, Such as common refridgerater magnets.
Definition
permanent magnets
Term
Temporary magnets
Definition
Materials that act like magnets in the presence of a strong magnetic field.
Term
Electromagnets
Definition
The magnetism in electromagnets is generated by a current running through the magnet that can be turned on and off at will.
Term
In ancient times,Both Greeks and Chinese knew about natural magnets rare chunks of iron-rich mineral known as?
Definition
Lodestones
Term
A ____ _____ is a lightweight magnet on a frictionless pivot or swivel, The magnet is generally called a ____?
Definition
Magnetic compass, Needle
Term
Materialsare those that show spontaneous magnetization, If these materials are brought closer to a magnet they will be strongly attracted towards it, regardless of orientation
Definition
Ferromagtnetic
Term
Materials are slightly repelled by a magnetic and the material does not retain the magnet properties when the external field is removed
Definition
Diamagnetic
Term
materials are slightly attracted by a magnetic and the material does not retain the magnet properties when the external field is removed
Definition
paramagnetic
Term
A moving electric charge creates a magnet field, A fundamental property of magnetic fields is that they exert forces on moving electrical charges known as?
Definition
Magnetic force
Term
The SI unit of the strength of the magnet field is?
Definition
Tesla
Term
Charges moving in a magnetic field create an electric field.
Definition
Electromagnetic induction
Term
States that any charge in the magnetic environment of a coil of wire. By who?
Definition
Faraday's law, Micheal Faraday
Term
The earth produces a large magnetic field extends thousands of kilometers outward into space.
Definition
Magnetosphere
Term
Two regions of particularly high consentration of charged particles is called?
Definition
Van Allen radiation belts
Supporting users have an ad free experience!