# 7Px Y15 M10 D22 - whangareigirlshighphysics

```7Px HNH 22 Whiringa-ā-Nuku 2015
What we will do
What we will learn
Preliminaries and Roll
How to start well
Extend the triangle for supply
voltage, resistor voltage,
capacitor voltage and inductor
voltage
Extend further to include the
concepts of resistance,
reactance and IMPEDANCE
The opposite phases of
capacitor and inductor
voltages AND how to draw
the vector sum
What impedance actually is.
How to find impedance.
Prelimin qu on p 202
How to tackle these qu’s
Set a due date for AC Unit 6 and
have some HRT on it
How to tackle exam-type
questions
No. of marks What for
1
1
Having sketches and FULL working
Neat presentation and down-page
format
1
1
1
Self marked and all correct – eventually
In on time and signed for (“This is my
own work”…….)
Total
A mark out of five that will contribute to the
HW item
Skills practiced
Capacitors in DC: Unit 3
Due Tuesday the 22nd of Sept
Energy stored on capacitors
Inductors in DC: Units 1 and 2
Due Wednesday the 14th of Oct
Magnetic Flux and
Inductors in DC: Units 3 and 4
Due Wednesday the 14th of Oct
Lenz’s Law and Transformers
Inductors in DC: Units 5 and 6
Due Thursday the 15th of Oct
Inductance and time constant for
Inductors
AC: Unit 1 and 2
Due Thursday 22nd of October
The sine wave nature of V and I
RMS and Peak values for V and I
Capacitor Reactance
AC: Unit 3
Due Friday 23rd of October
Reactance of an Inductor
AC: Unit 4
Due Tuesday 27th of October
Phase difference between Voltage
and Current for a Capacitor
http://whangareigirlshigh
physics.wikispaces.com/
NCEA3+Physics+Core
```