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As3.4 Mechanics (External)
Translational Motion
Centre of mass (1 and 2 dimensions); conservation of momentum and impulse (2 dimensions only).
Circular Motion and Gravity
Velocity and acceleration of, and resultant force on, objects moving in a circle under the influence of 2 or more forces, Newton’s Law of gravitation, satellite motion.
 
Rotating Systems
Rotational motion with constant angular acceleration; torque; rotational inertia; conservation of angular momentum; conservation of energy.
Oscillating Systems
The conditions for Simple Harmonic Motion, angular frequency, variation of displacement, velocity and acceleration with time, phasor diagrams, reference circles, damped and driven systems, resonance, conservation of energy.
 

Worksheets

3Circular.doc
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Gravitatioal.doc
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Momentum and COM.doc
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Rotation1.doc
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Rotation2.doc
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SHM1.doc
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SHM2.doc
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Past NCEA Papers

90521-exm-2011.pdf
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90521-ass-2011.pdf
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90521-exm-2012.pdf
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91524-exm-2013.pdf
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91524-exm-2014.pdf
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90521-ass-2012.pdf
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91524-ass-2013_1.pdf
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91524-ass-2014_3.pdf
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video lessons

Useful websites for revision notes