MAGNETIM:-Invisible force of push or pull by n object with this property.
Wagon does not move force are not lined up
Wagon moves, forces are line up
Hi! We`re e-(electrons)!!!
We usually speed around the outside of the nucleus.
In these atoms,each e-is going it`s own way
But in a magnet or a metal,we can line up to become magnetic
Lined up atoms/electrons=Domain.
MAGNETS:-Materials whose atoms can be aligned
Fe: Iron
Soft iron losses magnetism easily
Co Cobalt
Used to harden tools
Ni: Nickel
Used to make jewelry
OTHER MAGNETS
Compass
Earth.
MAGNETS PROPERTIES
Have domain{lined up atoms}
Have polarity{characteristic of magnetism}
Northing-seeking pole [normal]
South-seeking pole[reversed]
Cannot have only 1 pole….magnetic poles cannot be isolated……..
Like poles repel, Opposite poles attract
MAGNETISM:-An area where the force exists, area where force is felt
MAGNETIC FIELD LINES
Leaves north pole and enters south pole
Lines closer together= stronger field
NOTICE
Stronger at the poles
Field lines start at the NORTH pole and travel towards the SOUTH pole.
ELECTROMAGNET:-A magnet with a field produced by an electric current
ELECTROMAGNETISM A moving charge [electricity]produces a magnet field
More coils o wire=
More current=
Stronger magnet
Bigger battery=
Stronger magnet
INDUCTION:-Causes a response
Example of induction; Making something magnetic
Induction by proximity
Putting a magnet on an iron nail
Induces the nail to become magnetic
Electromagnetic Induction:
A moving charge [electricity]through
Coils around a nail induces the nail to become magnetic.
ELECTRICITY;-The movement of electrons from one place to another
#e-movement—negative charged area-
---positively charge area
ELECTRICAL FORCES:-A force that one charge exerts on another
1. e —and p+
- Attract one another
-Opposite charge attract
[+ and _ charge]
2.e- and e- or p+ and p+
-repel one another
- like charges repel
[- and – charges]
STATIC ELECTRICITY;-Electrons are displaced WITHOUT moving through a conductor
Displaced and builds charge[not moving through a conductor]Eventually electrons “jump” to a positively charged object
EXAMPLES
Plastic sheet and hair
Walking on carpet and
Touching a metal doorknob
CURRENT ELECTRICITY:-The flow of electrons
Flow from negative to positive
Electric current; I unit= amp[electrons/second]
Current occurs when charge at the ends of a conductor are different
ELECTRIC FIELDS;-A force field that fills the space around electrical charges
ELECTRICAL FIELD[two charge are separated
Vectors[lines of force] point towards negative charges and away from positive charges
Strength of field [magnitude]=distance between two charges
Closer particles=stronger field
CONDUCTORS;-A material, usually a metal, through which electrons can flow
Good conductor electrons able to move freely within the atoms of the material
Poor conductor or insulator electrons are not free to move about the atoms of the other material
ELECTRIC CIRCUIT;-A path that allows electrons to flow from negative to positive
ELECTRICITY—MAGNETISM;-Electric currents cause magnetism
How can you tell?
Compass needle moves when near electrical current-creating an magnetic field
MAGNETISM—ELECTRICITY;-Moving magnet can generate electricity
How can you tell?
ELECTROMAGNETIC INDUCTION; moving a magnet in and out of a coiled wire created an electrical current without a battery.
PLASMA;-Superheated matter wher electrons are not bound to nucleus,free electrons and ions
Plasma
4th state of matter
Highly magnetic
On Earth=Northern[southern]lights
On sun causes—sun sports, flares, prominences and Coronal mass ejections[CME-where plasma escapes to earth]
SUMMARY OF E & M;-E=Electricity and M= magnetism are related!!!
ELECTRICITY
ELECTRICITY MAGNETISM
Can be + or - can not have only 1 pole
Can flow [current] Can be normal [N] or Reversed [S] pole
Can jump [static] Can move through field
Causes sun sports flares, CME.
Wagon does not move force are not lined up
Wagon moves, forces are line up
Hi! We`re e-(electrons)!!!
We usually speed around the outside of the nucleus.
In these atoms,each e-is going it`s own way
But in a magnet or a metal,we can line up to become magnetic
Lined up atoms/electrons=Domain.
MAGNETS:-Materials whose atoms can be aligned
Fe: Iron
Soft iron losses magnetism easily
Co Cobalt
Used to harden tools
Ni: Nickel
Used to make jewelry
OTHER MAGNETS
Compass
Earth.
MAGNETS PROPERTIES
Have domain{lined up atoms}
Have polarity{characteristic of magnetism}
Northing-seeking pole [normal]
South-seeking pole[reversed]
Cannot have only 1 pole….magnetic poles cannot be isolated……..
Like poles repel, Opposite poles attract
MAGNETISM:-An area where the force exists, area where force is felt
MAGNETIC FIELD LINES
Leaves north pole and enters south pole
Lines closer together= stronger field
NOTICE
Stronger at the poles
Field lines start at the NORTH pole and travel towards the SOUTH pole.
ELECTROMAGNET:-A magnet with a field produced by an electric current
ELECTROMAGNETISM A moving charge [electricity]produces a magnet field
More coils o wire=
More current=
Stronger magnet
Bigger battery=
Stronger magnet
INDUCTION:-Causes a response
Example of induction; Making something magnetic
Induction by proximity
Putting a magnet on an iron nail
Induces the nail to become magnetic
Electromagnetic Induction:
A moving charge [electricity]through
Coils around a nail induces the nail to become magnetic.
ELECTRICITY;-The movement of electrons from one place to another
#e-movement—negative charged area-
---positively charge area
ELECTRICAL FORCES:-A force that one charge exerts on another
1. e —and p+
- Attract one another
-Opposite charge attract
[+ and _ charge]
2.e- and e- or p+ and p+
-repel one another
- like charges repel
[- and – charges]
STATIC ELECTRICITY;-Electrons are displaced WITHOUT moving through a conductor
Displaced and builds charge[not moving through a conductor]Eventually electrons “jump” to a positively charged object
EXAMPLES
Plastic sheet and hair
Walking on carpet and
Touching a metal doorknob
CURRENT ELECTRICITY:-The flow of electrons
Flow from negative to positive
Electric current; I unit= amp[electrons/second]
Current occurs when charge at the ends of a conductor are different
ELECTRIC FIELDS;-A force field that fills the space around electrical charges
ELECTRICAL FIELD[two charge are separated
Vectors[lines of force] point towards negative charges and away from positive charges
Strength of field [magnitude]=distance between two charges
Closer particles=stronger field
CONDUCTORS;-A material, usually a metal, through which electrons can flow
Good conductor electrons able to move freely within the atoms of the material
Poor conductor or insulator electrons are not free to move about the atoms of the other material
ELECTRIC CIRCUIT;-A path that allows electrons to flow from negative to positive
ELECTRICITY—MAGNETISM;-Electric currents cause magnetism
How can you tell?
Compass needle moves when near electrical current-creating an magnetic field
MAGNETISM—ELECTRICITY;-Moving magnet can generate electricity
How can you tell?
ELECTROMAGNETIC INDUCTION; moving a magnet in and out of a coiled wire created an electrical current without a battery.
PLASMA;-Superheated matter wher electrons are not bound to nucleus,free electrons and ions
Plasma
4th state of matter
Highly magnetic
On Earth=Northern[southern]lights
On sun causes—sun sports, flares, prominences and Coronal mass ejections[CME-where plasma escapes to earth]
SUMMARY OF E & M;-E=Electricity and M= magnetism are related!!!
ELECTRICITY
ELECTRICITY MAGNETISM
Can be + or - can not have only 1 pole
Can flow [current] Can be normal [N] or Reversed [S] pole
Can jump [static] Can move through field
Causes sun sports flares, CME.
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