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## Science Reasoning Center - Refraction

There are three Refraction and Lenses passages that target students' science reasoning abilities. They are ...

Snell's Law

11 Questions

This passage describes two experiments in which students investigate the effect of the angle of incidence upon the angle of refraction. Data is collected for the air-water and the air-lucite boundary and presented as an angle of incidence vs. angle of refraction graph and as a sine of the angle of incidence vs. sine of the angle of refraction graph. Questions target a student's ability to understand the design of an experiment, to predict the outcome of performing the experiment in a different manner, to identify the qualitative relationship among variables, to combine two or more data presentations in order to develop appropriate conclusions, and to use a model in order to analyze information and draw appropriate conclusions.

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Reflection and Transmission

12 Questions

This passage describes the variables that affect the percentage of incident light that undergoes reflection and transmission at the boundary between two materials. The passage uses a diagram, a table and two graphs to describe the relationships among variables. Questions target a student's ability to identify the effect of one variable on another variable, to select information from two or more data presentations, to make a prediction based on two or more data presentations, to interpolate and extrapolate from a graph, to compare data chosen from two or more graphs, and to use known data to make a prediction regarding an untested scenario.

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Lens Magnification Lab

13 Questions

This passage describes a student experiment investigating the effect of the object distance from a lens upon the characteristics of the image that is formed by the lens. Data is presented in the form of a diagram, three tables and a graph. Questions target a student's ability to determine the effect of one variable upon another variable, to select information from a table or graph, to interpret a complex diagram, to draw conclusions that are consistent with two or more data presentations, to interpolate and extrapolate from a table or a graph, and to make predictions based upon a model.

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On the Resource CD:
A Resource CD is being prepared to assist classroom teachers in using this section of the website more effectively within their classrooms. The Physics Classroom plans to release the CD during the spring semester or summer of 2013.

The Refraction and Lenses section of the CD will include seven different passages, including these three passages. The passages are accompanied by questions, answers with thorough explanations, and a table that associates each question with a specific science reasoning skill (or college readiness standard). Each passage includes considerably more questions than those presented here in the Science Reasoning Center. In addition to PDF files, the information on the CD is also available as Microsoft Word files, allowing teachers the ability to pick and choose questions from the large bank of questions associated with each passage.