light (checking progress/revision lessons)
DESCRIPTION
A range of tasks to check students progress. Note this slide is a continuation of the first one. Students and users are adviced to go over the slide titled LIGHT SPECTRUM AND DISPERSION before using this checking progress slide.TRANSCRIPT
![Page 1: LIGHT (CHECKING PROGRESS/REVISION LESSONS)](https://reader033.vdocuments.us/reader033/viewer/2022051610/54961d31b479592a118b481a/html5/thumbnails/1.jpg)
LIGHT
©2008 e-learning @Science-tutors
![Page 2: LIGHT (CHECKING PROGRESS/REVISION LESSONS)](https://reader033.vdocuments.us/reader033/viewer/2022051610/54961d31b479592a118b481a/html5/thumbnails/2.jpg)
LIGHT ©2008 e-learning @Science-tutors
![Page 3: LIGHT (CHECKING PROGRESS/REVISION LESSONS)](https://reader033.vdocuments.us/reader033/viewer/2022051610/54961d31b479592a118b481a/html5/thumbnails/3.jpg)
LIGHT ©2008 e-learning @Science-tutors
The relationship of the angle between the mirrors (A) to the number of images (N) is expressed as A(N+1) = 360. N+1 = 360º ÷A N = 360º -1 ÷ A Where N is the number of images formed between two mirrors inclined at any angle.
![Page 4: LIGHT (CHECKING PROGRESS/REVISION LESSONS)](https://reader033.vdocuments.us/reader033/viewer/2022051610/54961d31b479592a118b481a/html5/thumbnails/4.jpg)
LIGHT E-learning @Science-tutors
Draw three ray diagrams for angles 10º , 20º and 30º to show the following
incident ray, the normal and reflected ray in a plane mirror
![Page 5: LIGHT (CHECKING PROGRESS/REVISION LESSONS)](https://reader033.vdocuments.us/reader033/viewer/2022051610/54961d31b479592a118b481a/html5/thumbnails/5.jpg)
LIGHT E-learning @Science-tutors
TASK Describe the nature of the image formed in a plane mirror. How is the image different from the object?
![Page 6: LIGHT (CHECKING PROGRESS/REVISION LESSONS)](https://reader033.vdocuments.us/reader033/viewer/2022051610/54961d31b479592a118b481a/html5/thumbnails/6.jpg)
LIGHT E-learning @Science-tutors
YOUR TASK
Predict the number of images formed of an object placed between two plane mirrors set at the following angles:
60º 90º 160º
![Page 7: LIGHT (CHECKING PROGRESS/REVISION LESSONS)](https://reader033.vdocuments.us/reader033/viewer/2022051610/54961d31b479592a118b481a/html5/thumbnails/7.jpg)
LIGHT
©2008 e-learning @Science-tutors
The following data were collected in a science lesson-using a ray box and a slit to investigate reflections at plane surfaces (mirrors). Using the table shown below, represent the data as a line graph and draw a line of best fit.
Incidence Angle Angle of reflection
10 10
20 20
30 30
40 40
50 50
60 60
![Page 8: LIGHT (CHECKING PROGRESS/REVISION LESSONS)](https://reader033.vdocuments.us/reader033/viewer/2022051610/54961d31b479592a118b481a/html5/thumbnails/8.jpg)
LIGHT E-learning @Science-tutors
TASK Apply your knowledge and understanding of reflection to everyday situations
OR State the uses of reflection to everyday situations.
![Page 9: LIGHT (CHECKING PROGRESS/REVISION LESSONS)](https://reader033.vdocuments.us/reader033/viewer/2022051610/54961d31b479592a118b481a/html5/thumbnails/9.jpg)
LIGHT E-learning @Science-tutors