Teaching with Technology
Full Screen The sine of an angle φ greater than 90 0 is defined as
ordinate of point M ημφ = distance of point M from 0
If we consider that point Μ performs a smooth circular movement with a constant angular speed ω then the angle φ which is formed by radius ΟΜ will be the following:
Therefore
In other words, the projection of point Μ on the axis y’ y( ordinate) performs a simple harmonic oscillation of a width equal to the radius of the cyclical orbit and angular frequency equal to the angular speed of the circular movement.
We then posted the web page link to Edmodo,( http:// www. seilias. gr / index. php? option = com _ content & task = view & id = 313 & Itemid = 55) so that the students could enter from home, study it and enhance their understanding. We also follow this procedure with other chapters of 3 rd Lyceum Physics such as on Waves and Electromagnetism. For more information, you may also visit this web page.
Cypriot team, Maria Panteli-
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