New Nucleus collection resources
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The latest material additions to the Nucleus.en-USCopyright 2015, ComPADRE.orgeditor@the-nucleus.orgeditor@the-nucleus.orgFri, 10 Jul 2015 12:52:42 ESThttp://blogs.law.harvard.edu/tech/rsshttp://www.compadre.org/portal/services/images/LogoSmallStudent.gifNucleus
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12535Stormtrooper Explosion
http://www.compadre.org/student/items/detail.cfm?ID=13519
In a Star Wars VII trailer, we see a stormtrooper flung into the air from an explosion. The motion of the stormtrooper will provide information about the planet on which the scene occurs. The supplemental documents folder contains a Tracker experiment file with the video analysis of the stormtrooper's motion as described in the Wired magazine Dot Physics blog. The goal of the analysis is to estimate the stormtrooper's acceleration.Classical Mechanics/Motion in Two Dimensions/2D Accelerationhttp://www.compadre.org/student/bulletinboard/Thread.cfm?ID=13519Fri, 10 Jul 2015 12:52:42 ESThttp://www.compadre.org/student/items/detail.cfm?ID=13519Interactive Video Vignettes: Newton's Second Law
http://www.compadre.org/student/items/detail.cfm?ID=13615
This interactive video tutorial is an exploration of Newton's Second Law. The videos show a constant force exerted on carts of different mass. When the same force acts on a more massive cart, it accelerates less. This vignette walks the user through experiments to verify part of Newton's Second Law. With video analysis the user sees that the same force acting on twice the mass produces half the acceleration.
<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.Classical Mechanics/Newton's Second Law/Force, Accelerationhttp://www.compadre.org/student/bulletinboard/Thread.cfm?ID=13615Tue, 23 Jun 2015 10:39:12 ESThttp://www.compadre.org/student/items/detail.cfm?ID=13615Interactive Video Vignettes
http://www.compadre.org/student/items/detail.cfm?ID=13613
This website contains a collection of video-based interactive tutorials in physics. Interactive Video Vignettes (IVVs) are designed as ungraded web-based assignments for introductory physics students. They combine online video with video analysis and conceptual questions. Each online vignette addresses a difficult physics concept as identified by physics education research.
Vignettes are available for download to run locally, and some can be run from the IVV web site. Also available for download is the Vignette Studio that enables anyone to create a vignette. Information about the use of Vignettes in courses and research results on student learning are available.General Physics/Collections/Introductory Mechanicshttp://www.compadre.org/student/bulletinboard/Thread.cfm?ID=13613Tue, 23 Jun 2015 08:18:35 ESThttp://www.compadre.org/student/items/detail.cfm?ID=13613Interactive Video Vignettes: Bullet in a Block
http://www.compadre.org/student/items/detail.cfm?ID=13324
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.Classical Mechanics/Linear Momentum/Conservation of Linear Momentumhttp://www.compadre.org/student/bulletinboard/Thread.cfm?ID=13324Tue, 23 Jun 2015 07:23:56 ESThttp://www.compadre.org/student/items/detail.cfm?ID=13324Paradigms in Physics: Interpreting Effective Potential Plots
http://www.compadre.org/student/items/detail.cfm?ID=13595
This kinesthetic activity is designed to help upper division undergraduate students interpret graphs of effective potential versus radial distance. A student volunteer moves in an orbit described by a plot of effective potential vs. distance. The whole class wrap-up discussion focuses on what information is and is not included on the canonical plot of effective potential versus radial distance typically constructed by professional physicists.
This material is part of the Paradigms in Physics project at Oregon State University. This work promotes the use of active student learning in upper division physics courses. Both learning materials and learning strategies are provided to help both students and instructors.Classical Mechanics/Motion in Two Dimensions/Central Forceshttp://www.compadre.org/student/bulletinboard/Thread.cfm?ID=13595Tue, 23 Jun 2015 07:02:48 ESThttp://www.compadre.org/student/items/detail.cfm?ID=13595Paradigms in Physics: Velocity and Acceleration in Polar Coordinates
http://www.compadre.org/student/items/detail.cfm?ID=13596
This small group activity is designed to help upper division undergraduate students work out expressions for velocity and acceleration in polar coordinates. Students work in small groups to address the position dependence of curvilinear basis vectors in order to find general expressions for velocity and acceleration in polar coordinates. The whole class wrap-up discussion focuses on building connections between the students' geometric understanding of position, velocity and acceleration vectors and an algebraic formulation in polar (curvilinear) coordinates.
This material is part of the Paradigms in Physics project at Oregon State University. This work promotes the use of active student learning in upper division physics courses. Both learning materials and learning strategies are provided to help both students and instructors.Mathematical Tools/Coordinate Systemshttp://www.compadre.org/student/bulletinboard/Thread.cfm?ID=13596Mon, 22 Jun 2015 15:32:27 ESThttp://www.compadre.org/student/items/detail.cfm?ID=13596Paradigms in Physics: Linear Combinations of Spherical Harmonics
http://www.compadre.org/student/items/detail.cfm?ID=13597
This computer visualization activity is designed to help upper division undergraduate students visualize linear combinations of spherical harmonics. Students use a Maple worksheet or Mathematica notebook to visualize various representations of probability densities of linear combinations of spherical harmonics. The entire class wrap-up discussion addresses how to represent linear combinations of spherical harmonics in a variety of ways.
This material is part of the Paradigms in Physics project at Oregon State University. This work promotes the use of active student learning in upper division physics courses. Both learning materials and learning strategies are provided to help both students and instructors.Mathematical Tools/Series and Functions/Spherical Harmonicshttp://www.compadre.org/student/bulletinboard/Thread.cfm?ID=13597Mon, 22 Jun 2015 15:27:10 ESThttp://www.compadre.org/student/items/detail.cfm?ID=13597Paradigms in Physics: Finding the Coefficients of a Spherical Harmonic Series
http://www.compadre.org/student/items/detail.cfm?ID=13598
This small group activity is designed to help upper division undergraduate students learn how to expand functions in terms of spherical harmonics. Students work in small groups to find the coefficients of a given function expanded in spherical harmonics. The whole class wrap-up discussion includes group presentations focusing on the notion that any function on the unit sphere can be expanded in terms of the orthonormal set of spherical harmonics.
This material is part of the Paradigms in Physics project at Oregon State University. This work promotes the use of active student learning in upper division physics courses. Both learning materials and learning strategies are provided to help both students and instructors.Mathematical Tools/Series and Functions/Spherical Harmonicshttp://www.compadre.org/student/bulletinboard/Thread.cfm?ID=13598Mon, 22 Jun 2015 15:22:09 ESThttp://www.compadre.org/student/items/detail.cfm?ID=13598Paradigms in Physics: Coriolis and Centrifugal Accelerations
http://www.compadre.org/student/items/detail.cfm?ID=13599
This small group activity is designed to help upper division undergraduate students determine which way the Coriolis and centrifugal accelerations point. Students use their small whiteboards to calculate the Coriolis and centrifugal accelerations, and discuss with their neighbors which way these accelerations point. The whole class wrap-up discussion includes the derivation the students had been asked to complete, aiding students in determining which way the Coriolis and centrifugal accelerations point.
This material is part of the Paradigms in Physics project at Oregon State University. This work promotes the use of active student learning in upper division physics courses. Both learning materials and learning strategies are provided to help both students and instructors.Classical Mechanics/Relative Motion/Rotating Reference Frameshttp://www.compadre.org/student/bulletinboard/Thread.cfm?ID=13599Mon, 22 Jun 2015 15:16:55 ESThttp://www.compadre.org/student/items/detail.cfm?ID=13599Paradigms in Physics: Cosmic Rays
http://www.compadre.org/student/items/detail.cfm?ID=13600
This small group activity is designed to help upper division undergraduate students work out the lifetime of cosmic rays taking relativistic effects into account. Students work in small groups and use hyperbolic trigonometry and spacetime diagrams to calculate the lifetime of incoming cosmic rays. The entire class wrap-up discussion summarizes group findings and difficulties, helping students gain a geometric perspective of time dilation and length contraction.
This material is part of the Paradigms in Physics project at Oregon State University. This work promotes the use of active student learning in upper division physics courses. Both learning materials and learning strategies are provided to help both students and instructors.Relativity/Special Relativity/Time Dilationhttp://www.compadre.org/student/bulletinboard/Thread.cfm?ID=13600Mon, 22 Jun 2015 15:13:16 ESThttp://www.compadre.org/student/items/detail.cfm?ID=13600Paradigms in Physics: Doppler Effect
http://www.compadre.org/student/items/detail.cfm?ID=13601
This small group activity is designed to help upper division undergraduate students understand the Doppler effect using hyperbolic geometry. Students work in small groups and use spacetime diagrams and the geometry of hyperbolas to explore the Doppler effect. The entire class wrap-up discussion focuses on how to interpret the Doppler effect using hyperbolic trigonometry, giving students further insight into the geometry of special relativity.
This material is part of the Paradigms in Physics project at Oregon State University. This work promotes the use of active student learning in upper division physics courses. Both learning materials and learning strategies are provided to help both students and instructors.Relativity/Special Relativity/Time Dilationhttp://www.compadre.org/student/bulletinboard/Thread.cfm?ID=13601Mon, 22 Jun 2015 15:07:05 ESThttp://www.compadre.org/student/items/detail.cfm?ID=13601Paradigms in Physics: Energy-Momentum in Different Frames
http://www.compadre.org/student/items/detail.cfm?ID=13602
This small group activity is designed to help upper division undergraduate students compute relativistic energy and momentum in different reference frames. Students work in small groups and practice using 4-momentum and spacetime diagrams to determine relativistic energy and momentum in different reference frames. The entire class wrap-up discussion summarizes group findings, offering students a geometric view of relativistic kinematics.
This material is part of the Paradigms in Physics project at Oregon State University. This work promotes the use of active student learning in upper division physics courses. Both learning materials and learning strategies are provided to help both students and instructors.Relativity/Reference Frameshttp://www.compadre.org/student/bulletinboard/Thread.cfm?ID=13602Mon, 22 Jun 2015 15:01:39 ESThttp://www.compadre.org/student/items/detail.cfm?ID=13602Paradigms in Physics: Earth Hockey I
http://www.compadre.org/student/items/detail.cfm?ID=13603
This computer visualization activity is designed to help upper division undergraduate students visualize the motion of a hockey puck located on the surface of the earth. Students work in groups and use a computer animation to explain trajectories of a hockey puck in different reference frames, taking into account the Coriolis effect. The whole class wrap-up discussion summarizes the possible trajectories the hockey puck can take, helping students visualize the motion of objects in a rotating reference frame.
This material is part of the Paradigms in Physics project at Oregon State University. This work promotes the use of active student learning in upper division physics courses. Both learning materials and learning strategies are provided to help both students and instructors.Classical Mechanics/Relative Motion/Rotating Reference Frameshttp://www.compadre.org/student/bulletinboard/Thread.cfm?ID=13603Mon, 22 Jun 2015 13:28:26 ESThttp://www.compadre.org/student/items/detail.cfm?ID=13603Paradigms in Physics: Earth Hockey II
http://www.compadre.org/student/items/detail.cfm?ID=13604
This computer visualization activity is designed to help upper division undergraduate students model straight lines on a rotating Earth. Students use Maple to draw straight lines, i.e. great circles, on the earth, taking the earth's rotation into account. The entire class wrap-up discussion summarizes group findings, leading to a discussion on geodesics (“straight” lines on a curved surface).
This material is part of the Paradigms in Physics project at Oregon State University. This work promotes the use of active student learning in upper division physics courses. Both learning materials and learning strategies are provided to help both students and instructors.Classical Mechanics/Relative Motion/Rotating Reference Frameshttp://www.compadre.org/student/bulletinboard/Thread.cfm?ID=13604Mon, 22 Jun 2015 13:23:11 ESThttp://www.compadre.org/student/items/detail.cfm?ID=13604Paradigms in Physics: Lorentz Transformations for Electromagnetism
http://www.compadre.org/student/items/detail.cfm?ID=13605
This small group activity is designed to help upper division undergraduate students realize the connection between special relativity and electromagnetism. Students work in groups and derive part of the Lorentz transformations for electromagnetism. The whole class wrap-up discussion feeds into a lecture summarizing the group work and details the behavior of electromagnetic fields in special relativity, thus allowing students to connect their understanding of electromagnetic fields to their previous work on length contraction.
This material is part of the Paradigms in Physics project at Oregon State University. This work promotes the use of active student learning in upper division physics courses. Both learning materials and learning strategies are provided to help both students and instructors.Relativity/Special Relativityhttp://www.compadre.org/student/bulletinboard/Thread.cfm?ID=13605Mon, 22 Jun 2015 13:18:26 ESThttp://www.compadre.org/student/items/detail.cfm?ID=13605Paradigms in Physics: Mass is not Conserved
http://www.compadre.org/student/items/detail.cfm?ID=13607
This small group activity is designed to help upper division undergraduate students analyze a standard problem about colliding lumps of clay. Students work in small groups using relativistic kinematics and conservation laws to study the collision of lumps of clay. The whole class wrap-up discussion summarizes group findings, pointing out that mass is not conserved in special relativity.
This material is part of the Paradigms in Physics project at Oregon State University. This work promotes the use of active student learning in upper division physics courses. Both learning materials and learning strategies are provided to help both students and instructors.Relativity/Special Relativity/Relativistic Kinematicshttp://www.compadre.org/student/bulletinboard/Thread.cfm?ID=13607Mon, 22 Jun 2015 13:07:13 ESThttp://www.compadre.org/student/items/detail.cfm?ID=13607Paradigms in Physics: Rocket from the North Pole
http://www.compadre.org/student/items/detail.cfm?ID=13608
This kinesthetic activity is designed to help upper division undergraduate students visualize “straight” lines on a rotating object. Students work in pairs and attempt to draw straight lines on a rotating balloon. The entire class wrap-up discussion includes students sharing their work, opening up the classroom for a conversation on trajectories of objects in a rotating reference frame.
This material is part of the Paradigms in Physics project at Oregon State University. This work promotes the use of active student learning in upper division physics courses. Both learning materials and learning strategies are provided to help both students and instructors.Classical Mechanics/Relative Motionhttp://www.compadre.org/student/bulletinboard/Thread.cfm?ID=13608Mon, 22 Jun 2015 13:00:34 ESThttp://www.compadre.org/student/items/detail.cfm?ID=13608Paradigms in Physics: Paradoxes II
http://www.compadre.org/student/items/detail.cfm?ID=13610
This small group activity is designed to help upper division undergraduate students analyze relativity paradoxes. Students work in small groups and use spacetime diagrams to analyze relativity paradoxes sometimes not considered, such as the “manhole-cover” paradox. The whole class wrap-up discussion includes group presentations, allowing students to reach consensus in resolving each paradox as well as observe some of the interesting properties of special relativity.
This material is part of the Paradigms in Physics project at Oregon State University. This work promotes the use of active student learning in upper division physics courses. Both learning materials and learning strategies are provided to help both students and instructors.Relativity/Special Relativity/Simultaneityhttp://www.compadre.org/student/bulletinboard/Thread.cfm?ID=13610Mon, 22 Jun 2015 12:48:14 ESThttp://www.compadre.org/student/items/detail.cfm?ID=13610Paradigms in Physics: Turntable Hockey
http://www.compadre.org/student/items/detail.cfm?ID=13611
This computer visualization activity is designed to help upper division undergraduate students visualize straight lines in a rotating frame. Students use Maple or Mathematica to model straight lines in a rotating frame. The whole class wrap-up discussion summarizes group findings and relates the trajectories observed in the simulation with the motion of objects moving on the surface of a rotating Earth.
This material is part of the Paradigms in Physics project at Oregon State University. This work promotes the use of active student learning in upper division physics courses. Both learning materials and learning strategies are provided to help both students and instructors.Classical Mechanics/Rotational Dynamicshttp://www.compadre.org/student/bulletinboard/Thread.cfm?ID=13611Mon, 22 Jun 2015 12:40:29 ESThttp://www.compadre.org/student/items/detail.cfm?ID=13611Paradigms in Physics: Merry-Go-Round
http://www.compadre.org/student/items/detail.cfm?ID=13612
This kinesthetic activity is designed to help upper division undergraduate students visualize and experience the effect of rotational acceleration. Students play catch on a merry-go-round. The entire class wrap-up discussion includes student testimony of their experience of playing catch on a rotating surface, buttressing the students' understanding of rotational acceleration.
This material is part of the Paradigms in Physics project at Oregon State University. This work promotes the use of active student learning in upper division physics courses. Both learning materials and learning strategies are provided to help both students and instructors.Classical Mechanics/Rotational Dynamicshttp://www.compadre.org/student/bulletinboard/Thread.cfm?ID=13612Mon, 22 Jun 2015 12:34:14 ESThttp://www.compadre.org/student/items/detail.cfm?ID=13612