Keywords: Rotational Energy (16)

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Assessing student expertise in introductory physics with isomorphic problems. II. Effect of some potential factors on problem solving and transfer
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Assessing student expertise in introductory physics with isomorphic problems. II. Effect of some potential factors on problem solving and transfer

This paper explores the use of isomorphic problem pairs (IPPs) to assess ... (more)

This paper explores the use of isomorphic problem pairs (IPPs) to assess introductory physics students’ ability to solve and successfully transfer problem-solving knowledge from one context to another in mechanics. The paired problems are “isomorphic” because they require the same physics principle to solve them. We analyze written responses, individual discussions for a range of isomorphic problems, and potential factors that may help or hinder transfer of problem-solving skills from one problem in a pair to the other. When quantitative and conceptual questions were paired and given back to back, students who answered both questions in the IPP often performed better on the conceptual questions than those who answered the corresponding conceptual questions only. Although students often took advantage of the quantitative counterpart to answer a conceptual question of an IPP correctly, when only given the conceptual question, students seldom tried to convert it into a quantitative question, solve it, and then reason about the solution conceptually. Even in individual interviews when students who were given only conceptual questions had difficulty and the interviewer explicitly encouraged them to convert the conceptual question into the corresponding quantitative problem by choosing appropriate variables, a majority of students were reluctant and preferred to guess the answer to the conceptual question based upon their gut feeling. Misconceptions associated with friction in some problems were so robust that pairing them with isomorphic problems not involving friction did not help students discern their underlying similarities. Alternatively, from the knowledge-in-pieces perspective, the activation of the knowledge resource related to friction was so strongly and automatically triggered by the context, which is outside the conscious control of the student, that students did not look for analogies with paired problems or other aids that may be present. (less)

Subject:
Physics
Technology
Education
Material Type:
Reference
Provider:
ComPADRE Digital Library
Provider Set:
ComPADRE: Resources for Physics and Astronomy Education
Author:
Chandralekha Singh
Context Rich Problems Online Archives: Rotational Kinematics and Dynamics Problems
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Context Rich Problems Online Archives: Rotational Kinematics and Dynamics Problems

This page provides a set of context-rich physics problems on center of ... (more)

This page provides a set of context-rich physics problems on center of mass, moment of inertia, angular momentum, torques, and rotational energy. Each context-rich problem is based on a real-world situation, and includes both information that is relevant to solving the problem and extraneous information. Strategies for problem solving are not explicitly provided. Each problem is formulated so it is too difficult for one student to solve alone, yet not too difficult for a group to master. This resource is based on the research results of the Minnesota Physics Education Research group. See Related items on this page for a link to the full collection. (less)

Subject:
Mathematics
Chemistry
Physics
Technology
Education
Material Type:
Activities and Labs
Instructional Material
Lecture Notes
Provider:
ComPADRE Digital Library
Provider Set:
ComPADRE: Resources for Physics and Astronomy Education
Author:
Kenneth Heller
Patricia Heller
University of Minnesota Physics Education Research Group
Direct Current Electrical Motor Model
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Direct Current Electrical Motor Model

The Direct Current Electrical Motor Model illustrates a simple direct current (DC) ... (more)

The Direct Current Electrical Motor Model illustrates a simple direct current (DC) motor. The model shows an external magnet (called the stator because it’s fixed in place) and a turning coil of wire called an armature ( rotor or coil, because it rotates). The armature, carrying current provided by the battery, is an electromagnet, because a current-carrying wire generates a magnetic field; invisible magnetic field lines are circulating all around the wire of the armature. The key to producing motion is positioning the electromagnet within the magnetic field of the permanent magnet (its field runs from its north to south poles). The armature experiences a force described by the left hand rule. This interplay of magnetic fields and moving charged particles (the electrons in the current) results in the magnetic force (depicted by the green arrows) that makes the armature spin because of the torque. Use the slider current I to see what happens when the flow of current is reversed. The checkbox current flow & electron flow alows different visualization since I = d(Q)/dt and Q= number of charge*e. The Play & Pause button allows freezing the 3D view for visualizing these forces, for checking for consistency with the left hand rule . (less)

Subject:
Engineering
Physics
Technology
Material Type:
Instructional Material
Provider:
ComPADRE Digital Library
Provider Set:
ComPADRE: Resources for Physics and Astronomy Education
Author:
Fu-Kwun Hwang
Loo Kang Wee
Illinois PER Interactive Examples: Rotating Block and String
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Illinois PER Interactive Examples: Rotating Block and String

This is an interactive homework problem relating to conservation of angular momentum. ... (more)

This is an interactive homework problem relating to conservation of angular momentum. A small block on a string travels in circular motion on a table top. The string passes through a hole in the table's center, hence the circle radius can be shortened by pulling the string. Given mass of the block, students must determine how much work is done as the circular path is decreased from radius .63 m to .51 m. A user-activated "help" sequence is provided for each step of the problem-solving, from conceptual analysis through quantitative calculation. To promote critical thinking, immediate feedback is received for both correct and incorrect responses. This item is part of a larger collection of interactive homework problems for introductory physics. (less)

Subject:
Physics
Technology
Education
Material Type:
Activities and Labs
Full Course
Instructional Material
Reference
Provider:
ComPADRE Digital Library
Provider Set:
ComPADRE: Resources for Physics and Astronomy Education
Author:
Gary Gladding
Interactive Video Vignettes: Bullet in a Block
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Interactive Video Vignettes: Bullet in a Block

This interactive video tutorial allows students to explore concepts of momentum conservation ... (more)

This interactive video tutorial allows students to explore concepts of momentum conservation and energy conservation. This vignette shows that when a suspended block of wood is shot from below with a .22 rifle bullet, the bullet embeds in the block which then rises straight up to a distance of just under a meter. Then, if the block is shot off-center and given a noticeable amount of rotational energy, it still rises to the same height as in the previous example. Careful analysis shows that the block behaves according to the laws of physics. <br>This vignette was studied and found to have a significant effect on learning. See <a href="http://www.compadre.org/IVV/research/PERoutcomes.cfm" target="_blank">Research Outcomes</a> for details. (less)

Subject:
Engineering
Physics
Technology
Education
Material Type:
Instructional Material
Reference
Provider:
ComPADRE Digital Library
Provider Set:
ComPADRE: Resources for Physics and Astronomy Education
Author:
David Jackson
Derek Muller
Kathleen M. Koenig
Maxine Willis
Priscilla W. Laws
Robert Teese
Kinematics of a Translating and Rotating Wheel Model
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Kinematics of a Translating and Rotating Wheel Model

The EJS Kinematics of a Translating and Rotating Wheel model displays the ... (more)

The EJS Kinematics of a Translating and Rotating Wheel model displays the model of wheel rolling on a floor. By controlling three variables, the kinematics of the wheel can be changed to represent sliding, rolling with sliding, rolling without slipping, rolling with slipping, and spinning. The translational velocity of the wheel, the rotational velocity of the wheel, and the radius of the wheel can be changed via sliders. (less)

Subject:
Mathematics
Science and Technology
Computing and Information
Physics
Technology
Material Type:
Data
Full Course
Instructional Material
Interactive
Provider:
comPADRE
ComPADRE Digital Library
Provider Set:
Open Source Physics
ComPADRE: Resources for Physics and Astronomy Education
Author:
Mario Belloni
May the Force Be With You: Thrust
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May the Force Be With You: Thrust

In this lesson, students will study how propellers and jet turbines generate ... (more)

In this lesson, students will study how propellers and jet turbines generate thrust. This lesson focuses on Isaac Newton's 3rd Law of Motion, which states that for every action there is an equal and opposite reaction. (less)

Subject:
Mathematics and Statistics
Science and Technology
Engineering
Physics
Material Type:
Activities and Labs
Instructional Material
Lesson Plans
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Alex Conner
Geoffrey Hill
Integrated Teaching and Learning Program,
Janet Yowell
Malinda Schaefer Zarske
TeachEngineering.org
Tom Rutkowski
NBC Learn: Science of the Olympic Winter Games
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NBC Learn: Science of the Olympic Winter Games

This is the portal for a collection of 16 short videos that ... (more)

This is the portal for a collection of 16 short videos that explore the science behind winter olympic sports. The videos aim to provide engaging real-world examples of key concepts, including Newton's Laws of Motion, momentum, projectile motion, action/reaction, and friction. Athletes are featured in each video, along with physicists, materials scientists, engineers, biologists, and chemists. Several videos document how scientists and engineers work together to design the high-tech skis, skates, and bobsleds used by contestants in the Olympics. This resource, funded by the National Science Foundation, is part of a larger set of resources published by NBC which include the science of NHL Hockey and the science of NFL Football. (less)

Subject:
Mathematics
Physics
Technology
Material Type:
Activities and Labs
Instructional Material
Provider:
ComPADRE Digital Library
Provider Set:
ComPADRE: Resources for Physics and Astronomy Education
Author:
National Science Foundation
Over the Hill
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Over the Hill

In this physics activity, learners construct a small-scale version of a classic ... (more)

In this physics activity, learners construct a small-scale version of a classic carnival game. A large marble is rolled along a track made from a commonly available and inexpensive metal shelf bracket. The track is gently bent so that there is a flat portion, then a small hill, and finally a steep uphill portion. The objective is to roll the ball so that it goes over the first hill, but does not come back over the hill -- the ball should remain in the dip between the two hills. The process involves nice illustrations of the interplay of kinetic energy, potential energy and friction. (less)

Subject:
Chemistry
Engineering
Physics
Space Science
Social Sciences
Education
Material Type:
Activities and Labs
Games
Instructional Material
Simulations
Provider:
Science and Math Informal Learning Educators (SMILE)
Provider Set:
SMILE Pathway: Science and Math Activities in One Search
Author:
Don Rathjen
The Exploratorium
Physclips: Rotation, torques, precession
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Physclips: Rotation, torques, precession

This web page provides a multimedia introduction to rotation. It includes topics ... (more)

This web page provides a multimedia introduction to rotation. It includes topics such as rotational kinetic energy, rotational kinematics, moment of inertia, torques, Newton's laws for rotation, and angular momentum. Short video clips, still images, graphs, and diagrams are integrated with text to promote understanding of important concepts. This tutorial is part of the PhysClip collection of web-based resources on introductory mechanics, electricity, and magnetism. (less)

Subject:
Physics
Technology
Material Type:
Images and Illustrations
Instructional Material
Reference
Provider:
ComPADRE Digital Library
Provider Set:
ComPADRE: Resources for Physics and Astronomy Education
Author:
Joe Wolfe
Physical Pendulum Energy
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Physical Pendulum Energy

The Physical Pendulum Energy model shows the motion of of a physical ... (more)

The Physical Pendulum Energy model shows the motion of of a physical pendulum (rod) and and the kinetic and potential energies of the parts of the rod above and below the rotation axis, as well as the total energies of those parts. The length of rod above the rotation axis, as well as the rod's mass, initial angle and initial angular velocity can be adjusted. (less)

Subject:
Physics
Technology
Material Type:
Data
Instructional Material
Provider:
ComPADRE Digital Library
Provider Set:
ComPADRE: Resources for Physics and Astronomy Education
Author:
Mark Matlin
Physics Suite Peer Instruction Problems: Rotational Motion
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Physics Suite Peer Instruction Problems: Rotational Motion

This website contains a series of peer instruction problems on rotational motion, ... (more)

This website contains a series of peer instruction problems on rotational motion, designed to be solved in a classroom setting. The problems are presented with a qualitative question (usually multiple choice) that is carefully constructed to engage student difficulties with fundamental concepts. Students consider the problem individually and contribute their answers using personal response systems (clickers). Students then confer with their cooperative groups and vote again on the correct response. Topics covered include centrifugal force, angular speed, torque, rotational energy, and rotational friction. This problem set is part of the Physics Suite collection, containing sample problems, peer instruction problems, and alternative homework sets. (less)

Subject:
Physics
Technology
Education
Material Type:
Activities and Labs
Instructional Material
Lecture Notes
Reference
Provider:
ComPADRE Digital Library
Provider Set:
ComPADRE: Resources for Physics and Astronomy Education
Author:
Edward F. Redish
Physics Suite Sample Problems: Circular and Rotational Motion
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Physics Suite Sample Problems: Circular and Rotational Motion

This page contains a series of problems on the topic of circular ... (more)

This page contains a series of problems on the topic of circular and rotational motion developed for use with The Physics Suite, an activity-based learning project. Each problem was designed to help build qualitative understanding of physics and was built around student acquisition of knowledge as observed in recent studies. The problems vary in format and include estimation, context-based reasoning, multiple choice, short answer, qualitative questions, and essay questions. Topics covered include rotational energy, torque, angular momentum, and rotational kinematics. This item is part of a larger collection of problems, in-class questions, and interactive resources developed by the University of Maryland Physics Education Research Group. (less)

Subject:
Physics
Technology
Education
Material Type:
Activities and Labs
Instructional Material
Lecture Notes
Provider:
ComPADRE Digital Library
Provider Set:
ComPADRE: Resources for Physics and Astronomy Education
Author:
Edward F. Redish
Rotational and Rolling Motion Conceptual Survey
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Rotational and Rolling Motion Conceptual Survey

This 30-question research-based multiple-choice test is designed to evaluate students’ conceptual understanding ... (more)

This 30-question research-based multiple-choice test is designed to evaluate students’ conceptual understanding of rotational and rolling motion. The survey is based on investigations of students’ difficulties in introductory- and junior-level physics courses and should be given in a 50-minute period. Statistical results have shown the survey to be reliable and valid. A summary of the construction and analysis of the survey is available in <em>Student understanding of rotational and rolling motion</em>, Phys. Rev ST-PER <b>1</b> (1), 010102 (2005). This assessment is free for use by instructors in their classroom. However, as it takes years of development effort to create and validate reliable assessment instruments, the file is password-protected. Furthermore, the author requests that 1. students are not given copies following examination; and 2. none of the questions are incorporated into web-based question delivery systems without adequate security to prevent printing or unauthorized access by students. To obtain the password, please <a href="http://www.compadre.org/per/user/contact.cfm?Subject=Rotational%20and%20Rolling%20Motion%20Conceptual%20Survey%20(11956)">send a request</a> with your name, email, institution, and a link to a page at your institution that confirms you are an instructor. (less)

Subject:
Chemistry
Physics
Technology
Education
Material Type:
Assessments
Provider:
ComPADRE Digital Library
Provider Set:
ComPADRE: Resources for Physics and Astronomy Education
Author:
Chandralekha Singh
Lorenzo G. Rimoldini
Simple Circular Motion Model
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Simple Circular Motion Model

This simulation is a simple model of rides like an amusement park ... (more)

This simulation is a simple model of rides like an amusement park Merry-Go-Round. The rotational speed and radial distance are controlled with sliders at the bottom of the applet, while net horizontal force on the riders is monitored in the accompanying graph in terms of g-force experienced by riders. The 3D formatting allows viewing from a variety of vantage points. Students discover how rotational speed and radial distance interact to create a more thrilling ride. Don't miss the page link to "Physiological impact of g-forces". Students will learn that setting the speed and radial distance at the highest points will result in g-forces that exceed space shuttle re-entry and fighter jets at high speed. <b>See Related Materials</b> for an interactive tutorial on circular motion, appropriate for high school and lower-level undergraduate studies. The Simple Circular Motion Model was created using the Easy Java Simulations (EJS) modeling tool. It is distributed as a ready-to-run (compiled) Java archive. Double clicking the jar file will run the program if Java is installed. (less)

Subject:
Mathematics
Physics
Technology
Material Type:
Activities and Labs
Instructional Material
Provider:
ComPADRE Digital Library
Provider Set:
ComPADRE Classroom-Ready Resources
ComPADRE: Resources for Physics and Astronomy Education
Author:
Michael R. Gallis
Tea Cups Ride JS Model
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Tea Cups Ride JS Model

The Tea Cups Ride JS Model shows the motion on an amusement ... (more)

The Tea Cups Ride JS Model shows the motion on an amusement park ride. The 200 kg cups and the 80 kg riders are free to rotate around their center of the cup. The ride platform and cup platform are driven by motors (shown in green) but the motion of the riders about the cup center is not driven. Click on a cup to seat a person there before clicking Play/Pause to run the ride. The ride accelerates for some seconds, then stays at maximum angular speed (of the attraction and the platforms) and then slows down until stopping. This simulation is based on an original idea by Virgina Abellán, Roberto Pérez, and José David Rodríguez. Students of "Modelling Laboratory", 3rd year of the Math Degree at the University of Murcia, Spain. Academic year 2013-2014. The model was developed using the Easy Java Simulations (EjsS) version 5. It is distributed as a ready-to-run html page and requires only a browser with JavaScript support.This model simulates a ride in a Tea Cups attraction (as seen from above). (less)

Subject:
Computing and Information
Physics
Technology
Material Type:
Data
Instructional Material
Provider:
ComPADRE Digital Library
Provider Set:
ComPADRE: Resources for Physics and Astronomy Education
Author:
Francisco Esquembre
José Rodríguez
Roberto Pérez
Virgina Abellán
2002 llaF ,gnivloS melborP gnireenignE dna sretupmoC ot noitcudortnI

2002 llaF ,gnivloS melborP gnireenignE dna sretupmoC ot noitcudortnI

.desu si egaugnal gnimmargorp avaJ ehT .gninnalp dna ,tnemeganam ,ecneics ,gnireenigne ni ... (more)

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