An introduction to the concepts of pressure, atmospheric and hydrostatic pressure, Archimedes’ Principle and Pascal’s Principle, and the buoyancy and submersion of objects.
Would you lie down on a bed of nails? Would you rather be stepped on by an elephant or by a woman wearing stiletto heels? Can you crack a raw egg by squeezing it in your fist? Is atmospheric pressure high? Why don’t we notice it? Why do our ears pop when we climb a mountain, but hurt when we dive deep into the sea? Why are aqueducts built at the highest points of cities? What did Archimedes discover when he ran naked through the streets shouting “Eureka”? Why does a rock sink but a ship float? How do objects float in water? How does a submarine submerge and resurface? How is it possible to easily lift a car weighing hundreds of kilograms with a jack?
The experiment demonstration on pressure for 8th-grade students is designed to answer simple, everyday questions and introduce the students tostudents to concepts of classical physics such as force and pressure, atmospheric and hydrostatic pressure, Pascal’s Principle and Archimedes’ Principle, buoyancy, as well as the floating and sinking of objects. Through the demonstration of experiments, students will be able to make connections between science and technology and recognize the applications of science in their daily lives.
Modules
- Pressure
- Atmospheric pressure
- Hydrostatic pressure
- Communicating vessels
- Pascal's Principle
- Buoyancy
- Archimedes' Principle
- Float-Sink
- Density
Educational Objectives
An introduction to fundamental concepts and principles of classical physics, such as force and pressure, hydrostatic and atmospheric pressure, Archimedes’ Principle, and the principle of pressure transmission in fluids.
Presenting complex concepts in a simple, interesting, and engaging way.
Developing critical thinking skills.
Connecting science and technology.
Relating the content to everyday life.
Additional Material - Bibliography
- Antonios Nikolaos, Dimitriadis Panagiotis, Kampouris Konstantinos, Papamichalis Konstantinos, Lambrini Papatsima, Physics for 8th Grade, “Diophantus” Institute of Computer Technology and Publishing, ISBN-13: 9789600627312
- Ioannis A. Vlachos, Ioannis G. Grammatikakis, Vasilis A. Karapanagiotis, Periklis E. Peristeropoulos, George B. Timotheou, General Education Physics I for General High School, “Diophantus” Institute of Computer Technology and Publications, ISBN 100000012202218
- Ioannou Alekos, Danos Giannis, Pittas Angelos, Raptis Stavros, Physics, 12th Grade, General High School, Science Track, Institute of Computer Technology and “Diophantus” Publications, ISBN-13: 9789600624250
- Bloomfield, L. (2015), How Things Work: The Physics of Everyday Life, 4th ed., Wiley, New York, ISBN-13: 978-0470223994
- Douglas C. Giancoli, (2013), *Physics for Scientists and Engineers with Modern Physics*, Pearson Education Limited, ISBN-13: 978-1292020761
- Ehrlich, R. (1990), *Turning the World Inside Out and 174 Other Simple Physics Demonstrations*, Princeton University Press, Princeton, New Jersey, ISBN-13: 978-0691023953
- Hewitt, P. (2015), *Conceptual Physics*, 12th ed. Pearson, ISBN 13: 9780321909107
- Perelman, Y. (1972), *Physics for Entertainment*, Mir Publishers, Moscow, ISBN-13: 978-2917260067
- Perelman, Y. (1984), Fun with Math and Physics, Mir Publishers, Moscow, ISBN-13: 978-2917260319
- Serway, Raymond, and Jewett, W. John (2012), Physics for Scientists and Engineers, Kleidarithmos Publications, Athens, ISBN 9789604615094
- Serway, R. and Jewett, J. (2012), Principles of Physics: A Calculus-Based Text, Cengage Learning, Brooks/Cole, Boston, ISBN-13: 978-1133104261
- Young, D. Hugh (2009), University Physics with Modern Physics – Volume 1, Papazisis Publications, Athens, ISBN 9789600223385