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## Science Reasoning Center - Momentum

There are three Momentum passages that target students' science reasoning abilities. They are ...

Marshmallow Launcher

11 Questions

This passage describes an experiment in which students alter and test variables that impact the effectiveness of a marshmallow launcher. Data is provided in the form of a table and two diagrams. Questions target a student's ability to identify the effect of changes in a variable upon an outcome, to identify dependent and independent variables, to interpolate and extrapolate from provided data, to understand the design of an experiment, to draw conclusions that are consistent with the provided data, and to extend the findings of an experiment to a new situation.

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Air Bag Inflation and Passenger Safety

9 Questions

This passage describes the factors that affect the safe functioning of air bags. Data regarding delay time before inflation, inflation rates and inflation pressures are presented in the form of a table and a graph. Questions target a student's ability to find basic information in a body of text, to recognize patterns within a table of data, to draw conclusions that are consistent with data, to translate information from a table to a graph, to interpret the slope of a graph, and to recognize the implications of experimental findings.

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Collisions

13 Questions

This passage describes two experiments in which the inelastic and elastic collisions of two carts on a track are investigated. Mass, pre-collision velocities, and post-collision velocities of the carts are described using two data tables. Questions target a student's ability to understand the experimental design, to identify the effect of one variable on another, to draw conclusions consistent with the data, and to interpolate and extrapolate from the given data in order to predict the result of additional trials.

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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 Momentum and Collisions section of the CD will include six 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.

More information about the CD can be found at the Resource CD page.