Chapter 1.1 (3:17) - 62
Preparation - Chapter 1.1
Participation - Assignment P.6 Q6
Presentation - Blackboard, Student's Work
Possession
> Light travels in straight line, that produces(casts) sharp edges of shadows.
> Most non-luminous objects are made visible by diffuse reflection which reflects light to our eyes.
> light beam from a distant (i.e. far away) point object is parallel
> Vocabulary: convergent beam, divergent beam, parallel beam, light ray, point object
Chapter 1.2 (2:42) - 45
Preparation - Chapter 1.2
Participation - Assignment P.11 Q5
Presentation - Blackboard, Student's Work
Possession
> The laws of reflection (two statements!! not one equation!!)
> A plane surface produces a clear sharp image by regular reflection.
> Vocabulary: incident(adj) ray, reflected ray, angle of incidence(noun), angle of reflection, regular reflection
Preparation - Chapter 1.3a, Chapter 1.3b, Chapter 1.3c
Participation - Assignment P.25 Q7-12 and P.31 Q17, 18, 20, 21 <End of Assignment 1>
Presentation - Blackboard, Student's Work
Possession
> Draw a ray diagram based on laws of reflection to show the formation of (point and extended) image by a plane mirror.
> When the image is first located, then draw the ray diagram to show the formation of image.
> A and B are at different distance from a plane mirror. Draw a ray diagram to show how A sees B. And draw another to show how B sees A. Do calculations, using similar triangles, to solve problems. (P.26 Q11, 12 P.32 Q21)
> Vocabulary: object distance, image distance, nature of image, virtual vs real, erect (upright) vs inverted (up-side-down)
REVISION VIDEO - Chapter 1 (8:23) - 488
NEXT Chapter >>