**TEXTBOOK: Unit 2**

Chapter 6 Electricity pages 168-199

Chapter 7 Magnetism and Its Uses pages 200-231

Chapter 6 Electricity pages 168-199

Chapter 7 Magnetism and Its Uses pages 200-231

**PSc.3.3.1**

• Identify interactions between charged objects - opposite charges attract and like charges repel.

• Compare the three methods of charging objects: conduction, friction, and induction – explain the re-distribution or transfer of electrons

for each method for both positively and negatively charged objects.

• Compare static and current electricity related to conservation of charge and movement of charge (without calculations).

**sm ws Charge and Electricity http://www.cstephenmurray.com/Acrobatfiles/IPC/ch6to9/chap6no1.pdf**

**PSc.3.3.2**

• Interpret simple circuit diagrams using symbols.

• Explain open and closed circuits.

• Apply Ohm’s law and the power equation to simple DC circuits: V IR = and P VI = .

• Compare series and parallel circuits. Conceptually explore the flow of electricity in series and parallel circuits. (Calculations may be

used to develop conceptual understanding or as enrichment.)

• Explain how the flow of electricity through series and parallel circuits is affected by voltage and resistance.

**sm Circuits and Symbols**

**http://www.cstephenmurray.com/Acrobatfiles/IPC/ch6to9/chap6no2.pdf**

**sm Types of Circuits and Ohm's Law http://www.cstephenmurray.com/Acrobatfiles/IPC/ch6to9/chap7no1.pdf**

**Interactive Quiz with Ohm's Law Problems https://braingenie.ck12.org/skills/105667**

**PSc.3.3.3**

• Explain how the wire in a circuit can affect the current present – for a set voltage, the current in a wire is inversely proportional to its

resistance (more current exists where resistance is low); the resistance of a material is an intensive property called resistivity; increasing

the length of a wire increases the resistance; increasing the temperature increases the resistance; increasing the diameter of a wire

decreases its resistance.

• Explain using a cause-and-effect model how changes in composition, length, temperature, and diameter of a wire would affect the

current in a circuit.

**You tube video 07 Factors that Affect Resistance**

http://learn.mindset.co.za/resources/physical-sciences/grade-10/electric-circuits/07-factors-affect-resistance

PSc.3.3.4

• Describe the characteristics and behaviors of magnetic domains.

• Explain the attractions of unlike poles and the repulsion of like poles in terms of magnetic fields.

• Describe the characteristics and behaviors of magnetic domains.

• Explain the attractions of unlike poles and the repulsion of like poles in terms of magnetic fields.

**You tube video Magnetic Domains**

**http://www.brightstorm.com/science/physics/magnetism/magnetic-domains/**

Magnet and Compasses interactive activity

http://www.harcourtschool.com/activity/science_up_close/504/deploy/interface.swf_

http://www.harcourtschool.com/activity/science_up_close/504/deploy/interface.swf_