Critical Thinking
Applying Concepts Which type of mirror would you use to view an enlarged image of an object?
Designing Experiments Can the position of an object on the bottom of a swimming pool be accurately determined when viewed from above and at an angle to the water? Design an experiment to find out if refraction affects the apparent position of a submerged object.
Applying Concepts How could you convert the pinhole viewer used in the Quick Lab on page 585 into a device that could take a permanent picture?
Comparing and Contrasting What are the differences between a reflecting telescope and a refracting telescope?
Using Models Draw a ray diagram showing three rays of light traveling in air and striking the surface of water. Show one ray being reflected, one being refracted, and one entering the water without bending.
Predicting The illustration below shows a flashlight aimed down into a tub of water with a flat mirror lying on the bottom. Copy and complete the illustration by predicting the path of the light beam. (Hint: Remember to consider the effects of refraction and reflection.)
Inferring Many maps of the moon are printed showing the moon flipped upside down. What can you infer about the optical instruments used to view the moon?
Concepts in Action
Using Models How can you use the law of reflection to model a game of billiards?
Applying Concepts What kind of lens would you use to help you see a splinter in your finger?
Interpreting Diagrams The ray diagram below shows the formation of an image using a lens. Is the image a real or virtual image? What kind of lens is producing the image? Give a possible application for this type of lens.
Writing in Science Classify plane, convex, and concave mirrors in terms of image type or image size. Write a paragraph citing examples for each classification.
Performance-Based Assessment
Make a telescope using two convex lenses and a cardboard tube from a finished roll of paper towels. Attach the lenses using tape. If possible, get two tubes of slightly different diameters so that one can fit inside the other. Wrap the smaller tube with tape or cardboard to make the smaller tube fit snugly inside the larger tube. How can you focus your telescope?
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