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Ponce Campuzano, Juan Carlos; Matthews, Kelly E.; Adams, Peter – International Journal of Mathematical Education in Science and Technology, 2018
In this paper, we report on an experimental activity for discussing the concepts of speed, instantaneous speed and acceleration, generally introduced in first year university courses of calculus or physics. Rather than developing the ideas of calculus and using them to explain these basic concepts for the study of motion, we led 82 first year…
Descriptors: Mathematics, History, College Freshmen, College Science
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Bowlin, Melissa S.; McLeer, Dorothy F.; Danielson-Francois, Anne M. – Advances in Physiology Education, 2014
Evolutionary history and structural considerations constrain all aspects of animal physiology. Constraints on invertebrate locomotion are especially straightforward for students to observe and understand. In this exercise, students use spiders to investigate the concepts of adaptation, structure-function relationships, and trade-offs. Students…
Descriptors: Animals, Physiology, Science Instruction, Experiments
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Vera, F.; Rivera, R. – European Journal of Physics, 2011
We report a simple experiment that clearly demonstrates a common error in the explanation of the classic experiment where a small piece of paper is put over a book and the system is let fall. This classic demonstration is used in introductory physics courses to show that after eliminating the friction force with the air, the piece of paper falls…
Descriptors: Video Technology, Photography, Physics, Videotape Recorders
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Chubykalo, Andrew E.; Espinoza, Augusto; Kosyakov, B. P. – European Journal of Physics, 2011
Is it possible to compare approximately inertial frames in the inertial property? If this is the case, the inertial property becomes a measurable quantity. We give a positive answer to this question, and discuss the general principle of design of devices for making the required measurements. This paper is intended for advanced undergraduate and…
Descriptors: Graduate Students, Higher Education, Undergraduate Students, Physics
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Jenkins, Alejandro – European Journal of Physics, 2011
Many experimenters, starting with Ernst Mach in 1883, have reported that if a device alternately sucks in and then expels a surrounding fluid, it moves in the same direction as if it only expelled fluid. This surprising phenomenon, which we call "Machian propulsion", is explained by conservation of momentum: the outflow efficiently transfers…
Descriptors: Assistive Technology, Theory Practice Relationship, Experiments, Motion
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Mylott, Elliot; Klepetka, Ryan; Dunlap, Justin C.; Widenhorn, Ralf – European Journal of Physics, 2011
In this paper, we present a laboratory activity in computed tomography (CT) primarily composed of a photogate and a rotary motion sensor that can be assembled quickly and partially automates data collection and analysis. We use an enclosure made with a light filter that is largely opaque in the visible spectrum but mostly transparent to the near…
Descriptors: Radiation, Science Laboratories, Lighting, Science Activities
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Lindemuth, Jeffrey – American Journal of Physics, 1971
Describes an experiment to measure the effect of air resistance on falling balls suitable for use in undergraduate physics courses. (PR)
Descriptors: College Science, Experiments, Force, Motion
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Geller, Kenneth N.; Kollarits, Richard – American Journal of Physics, 1972
Descriptors: College Science, Energy, Experiments, Motion
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Landry, P. C.; And Others – Physics Teacher, 1971
Descriptors: College Science, Experiments, Independent Study, Instruction
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Gruenberg, H. – American Journal of Physics, 1978
Develops a theory to explain the effect that, when a current passes through a ball bearing, it can act as a motor. The motor can run in either direction on both DC and AC and can be self-starting on DC. Presents some experimental results in support of the theory. (Author/GA)
Descriptors: College Science, Electric Motors, Electricity, Experiments
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Moloney, Michael J. – American Journal of Physics, 1978
A coupled-oscillator system is given which is readily set up, using only household materials. The normal-mode analysis of this system is worked out, and an experiment or demonstration is recommended in which one verifies the theory by measuring two times and four lengths. (Author/GA)
Descriptors: College Science, Demonstrations (Educational), Experiments, Force
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Falk, Lars – American Journal of Physics, 1978
Gives a perturbation analysis to recurrence effects of the spring pendulum. The recurrence depends on two conservation laws which determine the motion in an intermediate region; oscillations outside this region are unstable and must return. Gives the relation to Fermi-Pasta-Ulam problem together with the explicit solution. (Author/GA)
Descriptors: College Science, Experiments, Higher Education, Instruction
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Hinirichsen, P. F. – American Journal of Physics, 1978
Describes an experiment which studies the motion of an irregular Lucite glider on an air table and demonstrates the dynamic properties of the center of mass. (Author/GA)
Descriptors: College Science, Experiments, Higher Education, Instruction