7px 16 pipiri 2015 what we will do what we will learn examine energy changes in shm, generally and...

7Px 16 Pipiri 20157Px 16 Pipiri 2015What we will do What we will learnExamine energy changes in SHM, generally and particularly (in a perfect world)

What the pattern is.

Extend the above to a real situation

How to handle energy losses because of friction, heat

See what happens to SHM when it is forced

Where the bell curve for “response” comes fromWhat resonance is

A look ahead to the rest of this week.Today: Energy, damping and resonanceTomorrow: Review of Mechanics+HRTFri: Formative Assessment for both classes

How to stay on track for the 20th of November

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 practiced Rotation: Unit 3Due Fri 28th of May

Torque and rotational inertia

Rotation: Unit 4 and 5Due Thurs 4th of June

More on rotational inertia

Rotation: Unit 6Due Tues 9th of June

Rotational Kinetic Energy

SHM: Unit 1Due Wed 10th of June

Intro to oscillatory and simple harmonic motions

SHM: Units 2 and 3Due Fri 12th of June

The reference circle, phasors, displacement, velocity & accel’n.

SHM: Unit 4Due 18th of June

Natural frequency

SHM: Unit 4Due 19th of June

Phase difference

http://whangareigirlshighphysics.wikispaces.com/NCEA3+Physics