| 1. |
- Burt, Malcolm, et al.
(författare)
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Virtual reality, video screen shots and sensor data for a large drop tower ride
- 2020
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Ingår i: Physics Education. - : IOP Publishing. - 0031-9120 .- 1361-6552. ; 55:5
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Tidskriftsartikel (refereegranskat)abstract
- Large drop towers let you experience a couple of seconds of nearly free fall before stopping gracefully in magnetic brakes or bouncing a number of times on compressed air, as in the Turbo Drop tower considered in this work, where many complementary representations are used. An accelerometer taken along on the ride captured the forces experienced by the body, and a pressure sensor provided a simultaneous proxy measurement of elevation. These data can be treated numerically: integration of the accelerometer data gives a velocity graph which can be compared to derivatives of the elevation data obtained from the pressure sensor. Plotting elevation versus velocity gives a phase portrait for the damped oscillations of the gondola before it comes to a stop. These abstract mathematical and graphical representations are complemented by screen shots from a video as well as from a virtual reality movie offering the view from the point of a rider. Forces and acceleration overlaid in a 2D version of the VR movie give a geometric illustration of Newton's second law, in addition to the mathematical treatment. This work thus provides a wide range of representations, aimed to support student representational fluency and conceptual understanding of important force and motion concepts.
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| 2. |
- Pendrill, Ann-Marie, et al.
(författare)
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Champagne flows at Reims event
- 2011
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Ingår i: Physics Education. - 1361-6552 .- 0031-9120. ; 46:1, s. 6-8
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- In August, several hundred physicists and physics educators from all over the world gathered in Reims, France. GIREP-ICPE-MPLT 2010 was a joint event of three different organizations, the Groupe International de Recherch sur l'Enseignement de la Physique (GIREP), the International Commission of Physics Education (ICPE) and the group of Multimedia in Physics Teaching and Learning (MPTL). The note presents some highlights from the conference.
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| 3. |
- Pendrill, Ann-Marie, 1952, et al.
(författare)
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Researchers and educators meet at Lund University
- 2013
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Ingår i: Physics Education. - 0031-9120 .- 1361-6552. ; 48:5, s. 548-549
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The Nordic physical societies have arranged joint biannual meetings since 2009, bringing together researchers from all areas of physics (www.fysik. lu.se/english/npd2013). In June, 328 physicists and teachers from Norway, Den- mark, Finland, Iceland, Estonia and Sweden (and a few from elsewhere, e.g. the UK) met at Lund University, Sweden.
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| 4. |
- Pendrill, Ann-Marie, 1952, et al.
(författare)
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Free fall and harmonic oscillations: Analyzing trampoline jumps
- 2014
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Ingår i: Physics Education. - : Institute of Physics Publishing. - 0031-9120 .- 1361-6552. ; 50:1, s. 64-70
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Tidskriftsartikel (refereegranskat)abstract
- Trampolines can be found in many gardens and also in some playgrounds. They offer an easily accessible vertical motion that includes free fall. In this work, the motion on a trampoline is modelled by assuming a linear relation between force and deflection, giving harmonic oscillations for small amplitudes. An expression for the cycle-time is obtained in terms of maximum normalized force from the trampoline and the harmonic frequency. A simple expression is obtained for the ratio between air-time and harmonic period, and the maximum g-factor. The results are compared to experimental results, including accelerometer data showing 7g during bounces on a small trampoline in an amusement park play area. Similar results are obtained on a larger garden trampoline, and even larger accelerations have been measured for gymnastic trampolines.
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| 5. |
- Pendrill, Ann-Marie, 1952
(författare)
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Students compete in European Union Science Olympiad 2010
- 2010
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Ingår i: Physics Education. - 0031-9120 .- 1361-6552. ; 45:4, s. 318-320
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- In April 2010, young students from 21 countries competed in EUSO - the European Union Science Olympiad. Each country sent two teams of three students to an experimental science competition. The first day, the teams helped an alien find water on Earth, and the second day, the solved a criminal case.
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| 6. |
- Pendrill, Ann-Marie, 1952
(författare)
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Swedish National Resource Centre for Physics Education celebrates its 20th anniversary
- 2014
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Ingår i: Physics Education. - : IOP Publishing. - 0031-9120 .- 1361-6552. ; 49:4, s. 371-372
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The Swedish National Resource Centre for Physics Education (fysik.org) was created at Lund University by the Swedish Government in 1994. Its 20th anniversary was celebrated 31 March to 1 April at the Island of Hven, which became an EPS historic site in 2013. The theme for the anniversary conference was 'From science education research to education—on research-based development projects'.
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| 7. |
- Pendrill, Ann-Marie, et al.
(författare)
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The equivalence principle comes to school : falling objects and other middle school investigations
- 2014
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Ingår i: Physics Education. - : IOP Publishing Ltd.. - 0031-9120 .- 1361-6552. ; 49:4, s. 425-430
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Tidskriftsartikel (refereegranskat)abstract
- Comparing two objects falling together is a small-scale version of Galileo's classical experiment, demonstrating the equivalence between gravitational and inertial mass. We present here investigations by a group of ten-year-olds, who used iPads to record the drops. The movie recordings were essential in the follow-up discussions, enabling the students to compare the different situations and to discern situations where air resistance was essential and where it could be neglected. By considering a number of familiar situations and simple investigations that can be performed, e.g., on a playground, students may come closer to an appreciation of the deep significance of the non-influence of mass on motion under gravity.
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| 8. |
- Löfstrand, Marcus, et al.
(författare)
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Aerodynamics in the amusement park : Interpreting sensor data for acceleration and rotation
- 2016
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Ingår i: Physics Education. - : IOP Publishing. - 1361-6552 .- 0031-9120. ; 51:5
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Tidskriftsartikel (refereegranskat)abstract
- The sky roller ride depends on interaction with the air to create a rolling motion. In this paper, we analyse forces, torque and angular velocities during different parts of the ride, combining a theoretical analysis, with photos, videos as well as with accelerometer and gyroscopic data, that may be collected e.g. with a smartphone. For interpreting the result, it must be taken into account that the sensors and their coordinate system rotate together with the rider. The sky roller offers many examples for physics education, from simple circular motion, to acceleration and rotation involving several axes, as well as the relation between wing orientation, torque and angular velocities and using barometer pressure to determine the elevation gain.
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| 9. |
- Abrahamsson, Cristian, et al.
(författare)
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Content, interest and the role of engagement : experienced science teachers discuss
- 2023
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Ingår i: Physics Education. - Bristol : Institute of Physics Publishing (IOPP). - 0031-9120 .- 1361-6552. ; 58:6
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Tidskriftsartikel (refereegranskat)abstract
- How do science teachers perceive student engagement and its importance for teaching and what strategies do they use to create it? When 21 experienced science teachers in 4 focus groups discussed these questions, they brought up behavioural aspects, but also less visible emotional and cognitive aspects, as well as reciprocal aspects of teacher and student engagement. One teacher described engagement as 'the oil in the machinery' during lessons. Which role does the curricular content play? Well aware that some topics are seen as more directly interesting by students, teachers connect to these, but also use hooks, including lively demonstrations, role play and connections to the outside world. In this way, they aim to generate situational interest and engagement also in topics that are often viewed as less interesting, including atoms and molecules. These experienced teachers describe how they adapt their teaching to the group also in real time, based on the degree of engagement exhibited by the students. © 2023 The Author(s). Published by IOP Publishing Ltd.
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| 10. |
- Dahl, Olof, et al.
(författare)
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Is the Archimedes principle a law of nature? Discussions in an 'extended teacher room'
- 2020
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Ingår i: Physics Education. - : IOP Publishing. - 0031-9120 .- 1361-6552. ; 55:6
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Tidskriftsartikel (refereegranskat)abstract
- Is a suction cup at the bottom of a bathtub subject to an upward force from the surrounding water, even if there is no water under it? A student question, posted in a teacher facebook group on a Monday morning, led to a discussion involving 21 comments with 225 replies offered by 16 teachers during the next few days, including several simple experiments, as well as modeling, to evaluate different arguments. The discussions, summarized in this paper, provide an example of how social media can provide an 'extended teacher room' where teachers can explore and refine their understanding in a safe and mostly supportive environment, and also find ways to give more elaborate answers to challenging student questions.
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