Name ________________ Date ________ Block ___
GAC Physics
Topic 5: Electric Currents
Ch 17
5.1 Electric potential difference, current and resistance
Electric Potential difference and Capacitance
5.1.1
Sec 1,
Define electric potential difference.
Practice A,
5.1.2
Determine the change in potential energy when a charge moves between two points at different
SR pg 601
potentials.
5.1.4
Solve problems involving electric potential difference.
5.1.12 Sec 2,
Relate capacitance to the storage of electrical potential energy in the form of separated charges.
5.1.13 Practice B,
Calculate the capacitance of various devices.
5.1.14 SR pg 607
Calculate the energy stored in a capacitor.
Electric Current and resistance
Assessment statement
5.1.5 Sec 3,
Define electric current.
Practice C,
SR pg 616
5.1.6
Sec 3,
Practice D,
SR pg 616
5.1.7
Teacher’s notes
It is sufficient for students to know that current is
defined in terms of the force per unit length
between parallel current-carrying conductors.
Define resistance.
Apply the equation for
resistance in the form:
where ρ is the resistivity
of the material of the resistor.
State Ohm’s law
Solve problems involving potential
difference, capacitance, current and
resistance.
5.1.8
5.1.11
Students should be aware that R = V/I is a
general definition of resistance. It is not a
statement of Ohm’s law. Students should
understand what is meant by resistor.
For example, students should be able to draw I–
V characteristics of an ohmic resistor and a
filament lamp.
5.2 Electric Circuits
5.2.1
5.2.2
5.2.3
Ch 18, Sec 2, Practice A, SR pg656
Ch 18, Sec 2, Practice B, SR pg 656
Ch 18 Sec 3, Practice C & D, SR pg 663
5.2.4
Ch 18, Sec 1, SR pg 645
5.2.5
Apply the equations for resistors in series.
Apply the equations for resistors in parallel.
Apply the equations for combinations of resistors in
complete circuits.
Draw circuit diagrams. Students should be able to
recognize and use the accepted circuits symbols.
Describe the use of ideal ammeters and ideal voltmeters.