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This inquiry-based lesson for Grades 6-9 introduces the concept of friction as a force that impedes motion when two surfaces are in contact. Students use a spring scale to measure the frictional force between a moving coffee mug and the surface it slides on. This resource includes background information for teachers, suggestions for lesson introduction and closure, and extension activities.

TeachEngineering is a Pathway project of the National Science Digital Library. It provides a large collection of teacher-tested, research-based content for K-12 teachers to connect real-world experiences with curricular content.
Subjects Levels Resource Types
Classical Mechanics
- Applications of Newton's Laws
= Friction
- Newton's Second Law
= Force, Acceleration
Education Practices
- Active Learning
= Inquiry Learning
Other Sciences
- Engineering
- Middle School
- Instructional Material
= Activity
= Instructor Guide/Manual
= Lesson/Lesson Plan
Appropriate Courses Categories Ratings
- Physical Science
- Physics First
- Lesson Plan
- Activity
- New teachers
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Intended User:
Educator
Format:
text/html
Access Rights:
Free access
Restriction:
Keywords:
Newton's Laws, frictional force, kinetic friction, static friction
Record Cloner:
Metadata instance created October 11, 2011 by Caroline Hall
Record Updated:
August 4, 2016 by Lyle Barbato
Last Update
when Cataloged:
August 23, 2010

### AAAS Benchmark Alignments (2008 Version)

#### 4. The Physical Setting

4E. Energy Transformations
• 6-8: 4E/M2. Energy can be transferred from one system to another (or from a system to its environment) in different ways: 1) thermally, when a warmer object is in contact with a cooler one; 2) mechanically, when two objects push or pull on each other over a distance; 3) electrically, when an electrical source such as a battery or generator is connected in a complete circuit to an electrical device; or 4) by electromagnetic waves.
4F. Motion
• 6-8: 4F/M3a. An unbalanced force acting on an object changes its speed or direction of motion, or both.
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AIP Format
(Integrated Teaching and Learning Program: Teach Engineering, Boulder, 2004), WWW Document, (https://www.teachengineering.org/lessons/view/duk_friction_smary_less).
AJP/PRST-PER
Teach Engineering: Discovering Friction (Integrated Teaching and Learning Program: Teach Engineering, Boulder, 2004), <https://www.teachengineering.org/lessons/view/duk_friction_smary_less>.
APA Format
Teach Engineering: Discovering Friction. (2010, August 23). Retrieved June 24, 2024, from Integrated Teaching and Learning Program: Teach Engineering: https://www.teachengineering.org/lessons/view/duk_friction_smary_less
Chicago Format
National Science Foundation. Teach Engineering: Discovering Friction. Boulder: Integrated Teaching and Learning Program: Teach Engineering, August 23, 2010. https://www.teachengineering.org/lessons/view/duk_friction_smary_less (accessed 24 June 2024).
MLA Format
Teach Engineering: Discovering Friction. Boulder: Integrated Teaching and Learning Program: Teach Engineering, 2004. 23 Aug. 2010. National Science Foundation. 24 June 2024 <https://www.teachengineering.org/lessons/view/duk_friction_smary_less>.
BibTeX Export Format
@misc{ Title = {Teach Engineering: Discovering Friction}, Publisher = {Integrated Teaching and Learning Program: Teach Engineering}, Volume = {2024}, Number = {24 June 2024}, Month = {August 23, 2010}, Year = {2004} }
Refer Export Format

%T Teach Engineering: Discovering Friction %D August 23, 2010 %I Integrated Teaching and Learning Program:  Teach Engineering %C Boulder %U https://www.teachengineering.org/lessons/view/duk_friction_smary_less %O text/html

EndNote Export Format

%0 Electronic Source %D August 23, 2010 %T Teach Engineering: Discovering Friction %I Integrated Teaching and Learning Program:  Teach Engineering %V 2024 %N 24 June 2024 %8 August 23, 2010 %9 text/html %U https://www.teachengineering.org/lessons/view/duk_friction_smary_less

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