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Physics Education, 1989
Described are the purposes, laboratory set-ups, and procedures of four classroom experiments: ultrasound speedometer; vibrating-bar depth gauge; folding three-dimensional model of equipotential surfaces; and a simple optical system for the reconstruction of images from computer-generated holograms. Diagrams and pictures are provided. (YP)
Descriptors: Acoustics, College Science, Electronics, Higher Education
Elizalde-Torres, J.; González-Cardel, M.; Vega-Murguía, E. J.; Castillo-González, I.; Rodríguez-Nava, M. – Physics Education, 2015
This paper presents the development of a conductive gel that can be used to measure the electrical potential differences on its surface, and has enough consistency to plot equipotential lines. It has a gelation time of less than 10 min, and is suitable for implementing learning experiences in a physics teaching laboratory in a 90 min session. To…
Descriptors: Science Instruction, Science Experiments, Physics, Energy