Transcript Chapter #13 Notes

Chapter 13
Chapter 13.1 Notes
• Electric charge an electrical property of
matter that creates a force between object.
• Opposite charges attract
• Like charge repel
• Electrons negative charge (-)
• Protons positive charge (+)
• Neutrons no charge (0)
• Conductor a material that transfers charge
easily.
• Insulator a material that does not transfer
charge easily.
• Electric force the force of attraction or
repulsion between objects due to charge.
• Electric Field the region around a
charged objects experience an
electric force.
Chapter 13.2 Notes
• Electrical Potential Energy is potential
energy of a charged object due to its
position in an electric field.
• Potential difference the change in the
electrical potential energy per unit charge.
• Cell a device that is a source of electrical
current because of a potential difference,
or voltage, between the terminals.
• Current the rate that electric charges move
through a conductor.
• Resistance the ratio of the voltage across
a conductor to the current it carries.
Resistance =
voltage
current
• Semiconductor has properties in between
conductors and insulators.
Chapter 13.3 Notes
• Electric circuit an electrical device
connected so that it provides one or more
complete paths for the movement of
charges.
• Schematic diagram a graphic
representation of an electric circuit or
apparatus, with standard symbols for the
electrical devices.
• Series describe a circuit or portion of a
circuit that provides a single conducting
path.
• Parallel describes components in a circuit
that are connected across common points,
providing two or more separate conducting
paths.
Power = Current X Voltage
• Electrical energy the energy associated
with electrical charges, whether moving or
at rest.
• Fuse an electrical device containing a
metal strip that melts when current in the
circuit becomes too great.
• Circuit breaker a device that protects a
circuit from current overloads.
Work Cited
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“Lighting”. May 16, 2008.
http://www.cobb.k12.ga.us/~simpson/Teacher%20Sites/Teacher%20Sites/El
ectricity.jpg
“Electricity”. May 16, 2008. http://science.pppst.com/banner_electricity.gif
“Electric Field”. May 16, 2008.
http://www2.glenbrook.k12.il.us/gbssci/phys/Class/estatics/u8l4c13.gif