light - kaleidoscope-multiple images with mirrors

Multiple images with mirrors
A kaleidoscope is an instrument that produces tesselations from images reflected in mirrors. In this activity you will need : -2 mirrors - protractor -coin
Place the two mirrors at 90^o to each other. As the angle between the two mirrors decreases the number of images increases. Click to see a 120kb movie of how you can multiply your money.
Place the two mirrors at 90^o to each other. Count the number of images produced.
Place the two mirrors at 80^o to each other. Count the number of images produced.
Place the two mirrors at 70^o to each other. Count the number of images produced.
Place the two mirrors at 60^o to each other. Count the number of images produced.
Complete the table by experimentation
Place the two mirrors at 50^o to each other.	Count the number of images produced.
Place the two mirrors at 40^o to each other.	Count the number of images produced.
Develop a formula that relates the degree of separation of the two mirrors with the number of images produced .
12 images are produced by the two mirrors pictured ont he right. What is the degree of separation of the two mirrors?
How many images will be produced if the angle between the mirrors was 10^o?
Draw up a table of results.
Graph your results on an appropriate set of axis. Label the axis and draw a line of best fit.
Is this a straight line? What is the relationship between the angle of the mirrors to each other and the number of images produced?
What are the dependent and independent variables?