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Galeriu, Calin – Physics Teacher, 2022
The determination of the speed of sound in air is a classical experiment, usually performed with a resonance tube apparatus. The measured value can be checked against Eq. (1), which describes the temperature dependence of the speed of sound in dry air. A modern implementation of this speed of sound investigation uses an Arduino Uno microcontroller…
Descriptors: Acoustics, Physics, Measurement Equipment, Motion
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Coleman, Aaron B.; Lam, Diane P.; Soowal, Lara N. – Biochemistry and Molecular Biology Education, 2015
Gaining an understanding of how science works is central to an undergraduate education in biology and biochemistry. The reasoning required to design or interpret experiments that ask specific questions does not come naturally, and is an essential part of the science process skills that must be learned for an understanding of how scientists conduct…
Descriptors: Science Instruction, College Science, Undergraduate Study, Biochemistry
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McCall, Richard P. – Physics Teacher, 2013
Systematic errors can cause measurements to deviate from the actual value of the quantity being measured. Faulty equipment (such as a meterstick that is not marked correctly), inaccurate calibration of measuring devices (such as a scale to measure mass that has not been properly zeroed), and improper use of equipment by the experimenter (such as…
Descriptors: Physics, Science Instruction, Laboratory Equipment, Science Laboratories
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Bonner, David – Science Teacher, 2012
Conducting labs isn't a new way to teach physics, but labs have become increasingly prevalent with the rise of inquiry. Physics students collect mostly quantitative data, often represented by graphs or tables. Interpreting this data can be a challenge for students, especially when it comes to experimental error. To address this issue, this article…
Descriptors: Physics, Science Instruction, Science Laboratories, Inquiry
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Page, A.; Moreno, R.; Candelas, P.; Belmar, F. – European Journal of Physics, 2008
In this paper, we show the potential of webcams as precision measuring instruments in a physics laboratory. Various sources of error appearing in 2D coordinate measurements using low-cost commercial webcams are discussed, quantifying their impact on accuracy and precision, and simple procedures to control these sources of error are presented.…
Descriptors: Laboratory Equipment, Science Instruction, Science Laboratories, Physics