Search Results for collision

... in temperature would cause an increase in pressure, which would then cause a change in volume. The change in pressure contradicts the problem statement. In the adiabatic compression, 42% of the students argued that the decrease in volume caused particles to be closer, leading to more inter-particle collisions...

... pulse “collisions.” Those who do not tend to use various fragmented resources, possibly forming concrete examples. From the research it appears that students use the particle pulse mental model, whereby students think about pulses as particles, things that can be thrown and can collide and also apply...

... gains following AR-based learning activities focusing on the topic of elastic collisions ( Lin et al., 2013 ). The same study simultaneously investigated learners’ specific behavioral patterns to demonstrate that AR-based systems support collaborative knowledge construction ( Lin et al...

... fundamental to explanations of phenomena in various disciplines. For example, the conservation of momentum (HS-PS2-2, NGSS, 2013 ) is important for understanding the molecular origin of pressure and osmotic pressure, since the pressure on a surface (or a semi-permeable membrane) is caused by collisions...

.... For example, noticing that an impulsive force model is best handled with momentum, energy, and impulse or noticing that the sum of the momentum vectors before a collision is identical to the sum of the momentum vectors after the collision. The purpose of abstracting the basic features of the specified model...

... a conserved quantity. 2 Christian Huygens proposed that in the case where the center of gravity of two colliding bodies stays constant another quantity had to stay constant: the total mv² before and after the collision. But it was Leibniz who proposed a living force, or vis viva, inherent...

... in a discussion about the mechanisms of the collision in order to decide whether the contradiction just needs to be accepted. Claudia's calling to mind a “massive truck” (line 20), gesturing to show that truck with her left hand colliding seems to draw the group further into this mode of reasoning. Delia, who had...

... (for more detail on the systems-transfer approach, see Nordine et al., 2018 ). In this approach, students learn to model energy transfers between the systems that are involved in phenomena. Initially, students investigate energy transfers that occur via forces (e.g., collisions between objects...

... geometrical optics also other techniques such as regarding the “area under the curve,” which is used in calculus, can be seen as a geometrical description and is applied in many physics examples, mostly in kinematics. The power of such a geometrical analysis was demonstrated with the example of collisions...

... there was a force due to the velocity in addition to a magnetic force. In the setting of a charged particle spiraling inward in a cloud chamber, only some 20% of students ascribed this to collisions with hydrogen; some 60% thought the magnetic field could change the speed of the particle. Hernandez et al...

... underpinnings of relativistic mass ( Michelini et al., 2014 ); relativistic dynamics and collisions; the connections between Galilean relativity and nonrelativistic quantum physics; relativistic quantum mechanics; relativity within studies primarily addressing the teaching and learning...

... than with C-12 ² ( Décamp and Viennot, 2015 ). Rather than describing radioactivity in terms of interactions between the particles that make up the nucleus, a study by Cros et al. found that respondents at the end of their first year at the university thought that collisions...

... be answered by a single word or phrase and invites exploration, for example: “How can a collision result in changed motion since the forces between the two objects are equal and opposite?” Students in the low-low group were found to have asked many more closed questions, and many fewer open questions, than...

... equations and formulas, they did not seem to understand their real meanings. An example Mazur gave is that students could recite Newton's third law and use it in numerical applications, but when asked to think about a specific real-world context like the collision between a heavy truck and a light car, many...

... ( 1954 ). 10.1103/PhysRev.93.888 Goldberger , M. and Watson , K. , Collision Theory ( Wiley , New York , 1964 ). Joachain , C. J. , Quantum Collision Theory ( North-Holland Publishing Company , Amsterdam , 1975 ). Mandel , L. , Sudarshan , E. C. G. , and Wolf...

... of the particle is lost by inelastic collisions with bound electrons either dissipating as heat or as excitation and/or ionization of atoms. Nuclear stopping displaces atoms through a series of elastic and inelastic collisions. These displaced atoms result in the creation of Frenkel pairs (N_d...

.... 12.2 ( Samuel, 2019 ). Real time: The state of a cyber-physical energy system must be observable all the time. A vivid illustration of such a system is the airbag system in an automobile. Whenever a collision occurs, the cyber-physical safety system detects it, and then an automobile airbag...