Explain What Happened by D. Mohamed - Louise Arbour https://padlet.com/p0084822/2zv03ts12o4b You observed an optical phenomenon at the start of class. Now is your chance to explain why the optical phenomenon took place. en-us 2017-12-04 23:33:05 UTC 2017-12-13 14:32:39 UTC hello@padlet.com Why did the arrow flip? BY: ERUM, Zak, Sharmika https://padlet.com/p0084822/2zv03ts12o4b/wish/215593809 We believe that when light passes through materials, it refracts/bends. The glass is like a magnifying glass, and it's stated that when light goes through a magnifying glass, it bends towards the centre. The light all comes together at the focal point, but beyond the focal point the image is reversed. This is because the light rays that were bent pass each other, and appear on opposite sides, making the arrow look opposite. Also, the lense is a converging lense which means the rays will converge to a point. ]]> 2017-12-12 19:50:21 UTC https://padlet.com/p0084822/2zv03ts12o4b/wish/215593809 2nd Mystery- Tanriya, Kaaresh, and Mehar 738774 https://padlet.com/p0084822/2zv03ts12o4b/wish/215594455 The container filled with water was able to flip the direction of the arrow due to refraction in a converging lenses. When the arrow (the object) is passing the focus, it is shown the same, or upright. When the arrow goes past the focus, it becomes inverted, or flipped.]]> 2017-12-12 19:51:54 UTC https://padlet.com/p0084822/2zv03ts12o4b/wish/215594455 Table 3: Harleen, Ansh, Kanupreet We think that the arrow flips because it's not inside the focal point. The arrow does not flip because it was inside the focal point. https://padlet.com/p0084822/2zv03ts12o4b/wish/215596182 2017-12-12 19:56:22 UTC https://padlet.com/p0084822/2zv03ts12o4b/wish/215596182 Why did the laser get trapped in the tube? Darrel,Jashan,Arti https://padlet.com/p0084822/2zv03ts12o4b/wish/215596982 The light is trapped in the plexiglass (total internal reflection). Inside the plexiglass the light keeps reflecting like its bouncing. It comes out the other end from a high index to a low index (plexiglass to air)]]> 2017-12-12 19:58:31 UTC https://padlet.com/p0084822/2zv03ts12o4b/wish/215596982 Table 7: Riya, Inderveer https://padlet.com/p0084822/2zv03ts12o4b/wish/215599079 The light the does not go past the plexiglass. Due to total internal reflection, the light kept bouncing off back and forth until it had no where to reflect and escaped. It started from a high index of refraction to low index of refraction. ]]> 2017-12-12 20:03:41 UTC https://padlet.com/p0084822/2zv03ts12o4b/wish/215599079 Table 5: Leya, Gurleen, Rajan https://padlet.com/p0084822/2zv03ts12o4b/wish/215623710 We think that the laser beam got stuck in the plexiglass because the total internal reflection caused the ray of light to pass back and forth throughout the plexiglass until it escaped the glass and went to a high index of refraction to a low index of refraction (glass to air).]]> 2017-12-12 21:22:30 UTC https://padlet.com/p0084822/2zv03ts12o4b/wish/215623710 Tatti https://padlet.com/p0084822/2zv03ts12o4b/wish/215802130 I like tatti]]> 2017-12-13 14:32:29 UTC https://padlet.com/p0084822/2zv03ts12o4b/wish/215802130