“Total force” on bodies immersed in air and water: An error living three centuries in physics textbooks

• Κύριος συγγραφέας: SLISKO, JOSIP
• Μορφή: Online
• Γλώσσα: English
• Έκδοση: Urray 2012
• Θέματα: Pedagogical Content Knowledge, PCK, Knowledge acquisition, Inquiry-Based Science Education, science; Energy, conservation, transformation, equivalence, history of science; Transfer of energy, mechanical work, heat, semiotic actions, inscriptions; Teleology, biology, chemistry, physics; Analyse of the activity, strategy, behaviour, spreadsheet, learning; education; Nature of science, history of science, science teaching; Total force on an immersed body, physics textbooks; Teacher training, mathematics teaching, scheme, instrument; Geology, Biology, time, explanatory register, obstacles; Energy, transformation, vertical path, primary, middle school; Issue, problem solving, preschool children, argumentation, STEM, engineering; Community, resources, teachers; science education; Inquiry-based science education, primary science education, teacher support, class observation, France; Waves, problem solving, interferences, sine function, graphical representation; Geophysical entities, preschool children’s representations, earth’s surface, implications for teaching; 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Learning Analytics, epistemology, methodology, ethics; Area Measurement, teaching area measurement, measurement tools, elementary school; Scientific partnerships, citizen science, teaching practices, science teaching; Action, reason, geometric middle, developmental perspective, International Center for Genetic Epistemology; Serious game, learning, knowledge, skills, elementary school.; Physics education, world image, theories and preoccupations, change of ideas; Children, ICT, technology, home, early childhood education; Oral health, dental caries, children’s ideas, oral health practices, pre-school education; Science education, participatory science, authenticity of learning, teaching practices, school-scientist partnerships; Participation, early mathematics, mathematising process, children’s initiatives, play pedagogies; Science education, scientific revolution, history and philosophy of science and; Material and virtual resources, praxeology, task, technique, technology, register, number sense, place-value system, Chinese abacus; 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This article presents numerous examples of an erroneous conception, stating that the “total force” by which a fluid acts on an immersed body is equal to the product of corresponding fluid pressure and the body’s surface area. This conception, which started its long life at the beginning of XVIII century, still appears in today’s physics textbooks published in different countries for different educational levels. It is formulated either as an “astonishing fact” or should be “discovered” through students’ calculations. In the last case, students’ knowledge may be unnecessary fragmented. Finally, a few differences between cultures of school and research physics are shortly discussed.