Warm up 12.01.08 • Take an Anchor Question from the gray tray and glue it in your notebook. • You will need a new sheet for the C-notes.
Jan 13, 2016
Warm up 12.01.08
•Take an Anchor Question from the gray tray and glue it in your notebook.
•You will need a new sheet for the C-notes.
Goals for today:Goals for today:AnnouncementsAnnouncementsElectricity Intro: Electricity Intro:
ChargesChargesAnchor QuestionsAnchor Questions
ReflectionReflection
Topic: Electrical Charges
Electrical Charge is a property of matter.
Examples of properties of matter:Water- boiling point, freezing
point, density
Topic: Electrical ChargesElectrical Charge is a property that allows an object to exert
force on another object without touching it.
Topic: Electrical ChargesElectrical Charge is related to
atoms and their particles:Electrons are negative
Protons are positive
Topic: Electrical FieldsElectrical Field is the space around which an object can exert a force:
•The force is stronger nearer the object.•The force is stronger is the charge is
large.
Topic: Electrical FieldsElectrical Field is the space around which an object can exert a force:
•The force is stronger nearer the object.•The force is stronger is the charge is
large.
Topic: Electrical FieldsElectrical Field is the space around which an object can exert a force:
•The force is stronger nearer the object.•The force is stronger is the charge is
large.
Topic: Electrical FieldsElectrical Field is the space around which an object can exert a force:
•The force is stronger nearer the object.•The force is stronger is the charge is
large.
Topic: Static ChargeStatic Charge is the buildup of
electric charge in an object caused by the presence of many particles
with the same charge•Example:
•Balloon and hair•Balloon and paper
Charging objects can be done two ways:
1.Charging by contact2.Charging by induction
Topic: Static Charge
Charging objects can be done two ways:
1.Charging by contact- charges move when the
objects TOUCH
Topic: Static Charge
Charging objects can be done two ways:
1.Charging by induction- charges move without
TOUCH
Topic: Static Charge
Topic: Static ChargeCharge
Polarization is the process of separating
opposite charges within an object. The
positive charge becomes separated from the negative
charge.
Diagram the electric field lines for the following configuration of
two objects. Place arrows on your
field lines.
Opposites attract. And likes repel.
Respond to the following student statement:
"A positively charged object is an object which has an excess of positive
electrons."
Topic: Charge Movement•Static Charges have Potential
Energy.•Potential Energy is stored energy. •Electric Potential is the amount of
electric potential energy that a unit of charge has at a certain position in an
electric field.•Electric Potential is measured in
Volts
Several electric field line patterns are shown in the diagrams below. Which of these patterns are incorrect? _________ Explain what is wrong with all incorrect diagrams.
Several electric field line patterns are shown in the diagrams below. Which of these patterns are incorrect? _________ Explain what is wrong with all incorrect diagrams.
Answer: C, D and EIn C, the lines are directed towards a positively charged object.In D, the lines are not symmetrically positioned despite the fact
that the object is a symmetrical sphere.In E, the lines are directed away from a negative charge.