day 140 - plane mirror activities

Plane Mirror ActivitiesMake your predictions before you conduct each activity and then see your teacher to have itstamped.A. Image in a small mirrorProcedure: While looking into the small mirror walk away until you can see your whole image.Record that distance and reflect on what you learned.Question: How far do you need to stand to be able to see your whole image?Prediction:1.More than 5ft 2.More than 10ft 3.More than 20ft 4.More than 100ft. 5.Too far to tellResults:Reflection:B. Image in a large mirrorProcedure: Move to a distance indicated in column A. Cover up the portion that does not includethe image. Record the heights as shown in the diagram. B. Your head to eye. C. Eye to feet.Calculate the angles O and P. I. portion covered.BBHHDECOPACA B C H O P1 m2 m3 mQuestion: What is the relationship between angle of incidence (P) and the angle of reflection(O)? What is the relationship between the distance from the image and the height of the image?What is the relationship between the height of the image and your actual height?Prediction:Results:Reflection:A

C. Eye ChartProcedure: Read the chart on the mirror and record how many lines you can read. Hold an eyechart next to you while looking into a mirror with an eye chart attached.Question: How many lines do you think you can read looking into the mirror compared toreading directly off the chart?Prediction:a. Twice as many b. ½ as many c. ¼ as many d. three time as many e. The sameResults:Reflection:D. Infinite mirrorProcedure: Look into the one of the mirrors from just outside of the second mirror.Prediction: Make a prediction as to what you will see when you look into the mirrorDraw a ray diagram showing rays of light getting from the object to the mirrors to your eye.Results: (What do you see?)Reflection:E. Mirrors at right anglesProcedure: Look into the junction between two mirrors at right angles and describe what you see.Why is this a truer image of what you actually look like to others? Draw a picture of the raydiagram.Reflection: