# Momentum Thinking Problems

Contributor
Dr. Redish University of Maryland Physics Education Research Group
Type Category
Assessment Materials
Types
Assessment Item
Note
This resource, vetted by NSTA curators, is provided to teachers along with suggested modifications to make it more in line with the vision of the NGSS. While not considered to be “fully aligned,” the resources and expert recommendations provide teachers with concrete examples and expert guidance using the EQuIP rubric to adapted existing resources. Read more here.

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## Description

This reference is a series of assessment items that require that the students think through momentum conceptually, analyze graphs related to impulse and momentum, and work through calculations using momentum and impulse. There are energy and momentum problems mixed together in this set. Due to the large number of assessment items, the instructor will want to select a portion of the questions rather than use the entire set as a single assessment. The webpage is formatted in a straight forward text so it is easy to copy and paste the items for use in classroom tests and quizzes. For teacher support materials and methods for most effectively using this material with students go to: http://www.physics.umd.edu/perg/.

Intended Audience

Educator and learner
Educational Level
• High School
Language
English
Access Restrictions

Free access - The right to view and/or download material without financial, registration, or excessive advertising barriers.

#### Performance Expectations

HS-PS2-2 Use mathematical representations to support the claim that the total momentum of a system of objects is conserved when there is no net force on the system.

Clarification Statement: Emphasis is on the quantitative conservation of momentum in interactions and the qualitative meaning of this principle.

Assessment Boundary: Assessment is limited to systems of two macroscopic bodies moving in one dimension.

This resource is explicitly designed to build towards this performance expectation.

These are a series of assessment items that address the conceptual understanding of momentum and the quantitative application of the law of conservation of momentum.

#### Science and Engineering Practices

This resource is explicitly designed to build towards this science and engineering practice.

Each assessment item examines a closed system and how the components within the system interact and exchange energy and/or momentum.

This resource is explicitly designed to build towards this science and engineering practice.

This is a series of assessment items related to the conservation of momentum and constructing explanations that represent what is occurring in a variety of situations.

#### Disciplinary Core Ideas

This resource is explicitly designed to build towards this disciplinary core idea.

These assessment items relate to momentum and its conservation, impulse, and conservation of momentum within a closed system.

#### Crosscutting Concepts

This resource appears to be designed to build towards this crosscutting concept, though the resource developer has not explicitly stated so.

In order to solve a momentum problem, a closed system must be used. This concept is being applied by the student as they are evaluating the problem but the concept is not directly mentioned in the assessment items.

This resource is explicitly designed to build towards this crosscutting concept.