7Px 21 Haratua 20137Px 21 Haratua 2013What we will do What we will learnPreliminaries and roll The importance of starting

well

Establish the link between SHM and circular motions

What a reference circle is and how to use it. (1500 and ACW)

Show an electronic reference circle in action and how to find it yourself

How to visualize the reference circles in action

Read the green book on ref circles An author’s view

See the proof of y=Asint Another way of looking at SHM

See the proof of v=Acost How to find the instantaneous vel.

See the proof of a=-2Asint How to find the instantaneous acceln

HRT on SHM, Units 1 and 2 plus HW

How to make good use of time

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 Motion – TranslationalUnits 4 and 5 pp 64 – 69 (incl)Due pd 1 Thurs 04 Apl 13

Centre of mass and Conservation of Momentum

Motion – CircularUnits 1 and 2 pp 72-74 and 76 - 79(incl)Due pd 1 Thurs 04 Apl 13

Circular motion including conical pendulaVertical motion in a circle.

Motion – CircularUnit 3 pp 77 - 82Due pd 5 Mon 15 Apl 13

Orbital Motion and Gravitation.

Motion – RotationalUnits 1, 2 and 3 pp 83 - 89Due pd 1 Mon 20 May 13

Angular displacement, velocity and accel’nTorque, angular accel’n and Rotational Inertia

Motion – RotationalUnits 4, 5 and 6 pp 90 - 99Due pd 1 Tues 28 May 13

Angular Momentum, Rotational Kinetic Energy