7Px 02 Here-Turi-Kōkā 20137Px 02 Here-Turi-Kōkā 2013What we will do What we will learnPreliminaries and roll The importance of starting well

Revisit the 2 source interference ideas from Y12 – possibly with a web-based simulation

How to “wake up” knowledge that’s asleep

Come back to the core concept in two source interference

Why path difference is the foundation of this topic

Prove a formula that is on the resource booklet

Where n=d.sin comes from and what it means

See the difference between the formula for twin and multi slits – and how to find d if we are given N

What the difference is between the formulae ANDHow to find N or d if given the other

HRT on units 5, 6 and 7 How to do three units of learning in one period

7 Physics Homework MarkingNo. of marks

What for

1 Having sketches and FULL working

1 Neat presentation and down-page format

1 Answer underlined and units given

1 Self marked and all correct – eventually

1 In on time and signed for (“This is my own work”…….)

Total A mark out of five that will contribute to the “homework” grade in the reports

HW item Skills practised WavesUnits 1 – 4 and unit 8: pp 21 – 35and pp 45 - 47Due Fri 12 August 13

Superposition, Standing Waves, the Physics of Music