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Satellites
Clean
March 26, 2011 12:11 PM PDT
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Calculating the height, speed & time period of satellites in orbit.

Gravity
Clean
March 17, 2011 03:45 AM PDT
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A look at gravity - the equations & effects.

The Spring Pendulum
Clean
March 17, 2011 11:03 AM PDT
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An analysis of the energy changes as a weight oscillates up & down on a spring - Gravitational, kinetic & elastic potential energy.

Circular motion
Clean
March 29, 2011 12:02 PM PDT
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Acceleration, Calculating accelerations, Turning & angles, Circular motion on an inclined bank, Vertical circular motion, Staying in the circle

Projectile Motion
Clean
March 09, 2011 11:14 AM PST
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Projectile path,
Forces on a projectile,
Velocity of a projectile,
Projectiles & energy,
Horizontal projection,
Projection at an angle,
Problem solving

Collecting and analysing data
Clean
March 24, 2011 06:00 AM PDT
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Types of errors, Accuracy vs precision, Estimating uncertainties, Calculating with uncertainties, Finding relationships between data, Graphing with uncertainties

Sustainable energy sources
Clean
November 09, 2012 10:39 AM PST
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Australia’s energy usage, Why is sustainable energy important?, Energy transformations & efficiency, Solar energy, Photovoltaic cells, Solar energy calculations, Wind power, Wind power calculations, Hydro power, Hydro power calculations, Biofuels.

Light waves: Polarisation & Colour
Clean
October 20, 2012 03:52 AM PDT
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What is light?, The electromagnetic spectrum, Waves, Wave equations, Light as electromagnetic radiation, Polarisation, Colour, Colour addition, Colour subtraction, Interference & structural colour

Optics & vision
Clean
October 13, 2012 01:18 PM PDT
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The human eye, Near point, Lens power, Short sightedness (Myopia), Long sightedness (Hypermetropia), Using lenses

Lenses
Clean
October 06, 2012 04:10 AM PDT
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Refraction, Converging lens, Diverging lens, Images in convex (converging) lenses, The human eye, Images in concave (diverging) lenses, The lens & mirror equation, Image formation - summary

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