APS Excellence in Physics Education Award
November 2019

Science SPORE Prize
November 2011

The Open Source Physics Project is supported by NSF DUE-0442581.

## Computer Program Detail Page

Relative Motion of Two Carts
written by Aaron Titus
This lab uses Tracker 4.0 video analysis software to measure and analyze the motion of two carts. Cart 1 has constant acceleration, and Cart 2 has constant velocity. Students are asked to predict the motion of each cart in the reference frame of the other cart. Tracker can be used to change the reference frame to one of the carts and update the graphs. Students measure the relative motion of the other cart and determine whether the reference frame is inertial or non-inertial.

Topics taught in this lab activity include Newton's first law, Newton's second law, reference frames, and the definition of an inertial reference frame.

This video, in conjunction with Tracker's ability to change reference frames, is ideal as an Interactive Lecture Demonstration. The lab questions can be used as ILD questions in lecture. When you ask students to predict the motion of a cart in the reference frame of the other cart, lively discussion will ensue. Teachers can also easily adapt the exercise for Clicker Questions during lecture.

The zip file contains the lab handout, a video showing the motion of two carts, and the Tracker file. The video is copyrighted by RIT and was produced by the LivePhoto Physics Series.

To open the Tracker file, download and run Tracker 4.0. Tracker is free.

The video can be used with other video analysis software; however, the handout has screen captures from Tracker and instructions specifically written for Tracker.
Subjects Levels Resource Types
Classical Mechanics
- Newton's First Law
- Newton's Second Law
= Accelerated Reference Frames
- Relative Motion
= Moving Reference Frames
Education Practices
- Active Learning
= Interactive Lecture Demonstration
= Modeling
- Lower Undergraduate
- High School
- Instructional Material
= Activity
= Laboratory
= Lecture/Presentation
= Tutorial
- Audio/Visual
= Movie/Animation
Intended Users Formats Ratings
- Learners
- Educators
- application/pdf
- application/zip
- video/quicktime
• Currently 5.0/5

Rated 5.0 stars by 1 person

Want to rate this material?
Login here!

Access Rights:
Free access
License:
This material is released under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 license.
Rights Holder:
Aaron Titus
Keywords:
lab, reference frames, relative motion, tracker, video analysis
Record Cloner:
Metadata instance created July 21, 2011 by Aaron Titus
Record Updated:
June 14, 2012 by Lyle Barbato
Last Update
when Cataloged:
July 21, 2011

### perfect!!!

Author: Ethan Kao
Posted: October 6, 2012 at 6:28AM

i love this so much!!!

Post a new comment on this item
ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
A. Titus, Computer Program RELATIVE MOTION OF TWO CARTS (2011), WWW Document, (https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11333&DocID=2330).
AJP/PRST-PER
A. Titus, Computer Program RELATIVE MOTION OF TWO CARTS (2011), <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11333&DocID=2330>.
APA Format
Titus, A. (2011). Relative Motion of Two Carts [Computer software]. Retrieved June 19, 2021, from https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11333&DocID=2330
Chicago Format
Titus, Aaron. "Relative Motion of Two Carts." https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11333&DocID=2330 (accessed 19 June 2021).
MLA Format
Titus, Aaron. Relative Motion of Two Carts. Computer software. 2011. 19 June 2021 <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11333&DocID=2330>.
BibTeX Export Format
@misc{ Author = "Aaron Titus", Title = {Relative Motion of Two Carts}, Month = {July}, Year = {2011} }
Refer Export Format

%A Aaron Titus
%T Relative Motion of Two Carts
%D July 21, 2011
%U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11333&DocID=2330
%O application/pdf

EndNote Export Format

%0 Computer Program
%A Titus, Aaron
%D July 21, 2011
%T Relative Motion of Two Carts
%8 July 21, 2011
%U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11333&DocID=2330

Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.

Citation Source Information

The AIP Style presented is based on information from the AIP Style Manual.

The APA Style presented is based on information from APA Style.org: Electronic References.

The Chicago Style presented is based on information from Examples of Chicago-Style Documentation.

The MLA Style presented is based on information from the MLA FAQ.

This resource is stored in 3 shared folders.

You must login to access shared folders.

### Relative Motion of Two Carts:

Know of another related resource? Login to relate this resource to it.
Save to my folders