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Showing 1 to 15 of 120 results Save | Export
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Williamson, Joey; Vokes, Molly; McDaid, Chloe; Mears, Matthew – Physics Education, 2022
Single slit diffraction and the thermal expansion of materials are common components of an undergraduate physics course, though these topics are often taught independently in both lectures and laboratory based courses. Higher levels of cognitive domains can be achieved by building on these established topics and combining them into a single…
Descriptors: Undergraduate Students, College Science, Physics, Science Experiments
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Biswas, Subhrajyoti – Physics Education, 2022
In this article we present a simple technique for determination of the Young modulus of the material of a metallic ruler using it as a cantilever. This method employs with a slide potentiometer and a digital multimeter. The linear region of potentiometer resistance which is calibrated in terms of length has been used to record the load vs.…
Descriptors: Science Instruction, Physics, Undergraduate Study, College Science
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Morris, John; Winter, Margie – American Biology Teacher, 2021
We describe a series of three experiments in which students develop a model system for measuring the LC50 of household substances, using grass seed as the model organism. Students use statistical methods to compare two samples (using chi-square and Student's "t"-tests), conduct a two-level multifactor experiment to look at multiple…
Descriptors: Science Experiments, Measurement Techniques, Hazardous Materials, College Science
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Craig, David M.; Leslie, Lewis R. – Physics Education, 2021
A practical experiment is described to estimate the distance to a star using simple equipment, suitable for secondary or undergraduate students. The brightness of the star is visually matched to a miniature filament lamp, and its distance inferred from the inverse square law. Students gain an appreciation of astronomical units and practice in…
Descriptors: Science Instruction, College Science, Secondary School Science, Undergraduate Study
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Lahane, Rohan D.; Bhatt, Harsh R.; Paranjpye, Arvind – Physics Education, 2022
Students are introduced to the term wavelength in optics at school level. In this paper, we present an inexpensive and simple method to measure the wavelength of the light of a light emitting diode using a light depending resistor. This experimental set-up is developed at Science Laboratory, Nehru Planetarium (Mumbai), India. It is useful as an…
Descriptors: Science Instruction, Physics, Light, Optics
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Bouquet, F.; Bobroff, J.; Kolli, A.; Organtini, G. – Physics Education, 2021
We created an introductory physics activity for undergraduate students, consisting of measuring the same physical quantity by different methods. This allows us to confront students with questions of uncertainty, precision, and model versus theory. The aim was to measure the height of a building using only a smartphone and everyday low-cost…
Descriptors: Physics, College Science, Undergraduate Study, Measurement Techniques
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Ashkarran, Ali Akbar; Mahmoudi, Morteza – Physics Education, 2021
Here, we propose the use of magnetic levitation (MagLev) device, as a simple, cheap, and portable experimental technique to measure the density of diamagnetic materials in laboratory settings. We highlight the basics of a standard MagLev system for measuring the density of unknown diamagnetic materials/objects using permanent magnets, paramagnetic…
Descriptors: Magnets, Science Experiments, Measurement Techniques, Science Laboratories
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Gallitto, Aurelio Agliolo; Battaglia, Onofrio Rosario; Fazio, Claudio – Physics Education, 2021
We describe an educational activity that can be done by using smartphones to collect data in physics experiments aimed to measure the oscillating period of a spring-mass system and the elastic constant of the helicoidal spring by the dynamic method. Results for the oscillating period and for the elastic constant of the spring agree very well with…
Descriptors: Science Instruction, Physics, Measurement Techniques, Telecommunications
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Cai, Longfei; Zhang, Xiaolin; Luo, Liquan; Lin, Huibin; Chen, Jinhua; Xu, Chunxiu; Zhong, Minghua; Liao, Xiaoning – Journal of Chemical Education, 2019
We described a simple method for detection of Fe on a thread-based analytical device. Fe reacts with 1,10-phenanthroline to form a colored band on a cotton thread; the length was measured to quantify the contents of Fe using a ruler. This method has the advantages of easy operation, low cost, easy fabrication, and reduced sample/reagent…
Descriptors: Chemistry, College Science, College Students, Science Experiments
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Saparullah; Purwanto, Agus; Wisnuwijaya, Rhyko Irawan; Sari, Emi Kurnia; Dwandaru, Wipsar Sunu Brams – Physics Education, 2020
The objective of this study is to design a temperature measurement system based on a non-contact method using a sensor camera from a webcam. The material being measured is nickel wire given an electrical current of 4.5 A-6.5 A with an interval of 0.5 A. The temperature measurement is based upon the measurement of the average pixel value…
Descriptors: Science Instruction, Measurement Techniques, Video Technology, Physics
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Nerem, Robert R.; James, David – Physics Teacher, 2020
Acharge pickup detector was developed at the University of Colorado for use in classroom demonstrations and in the dust accelerator at the Institute for Modeling Plasma, Atmospheres and Cosmic Dust (IMPACT). The detector can be used in a physics classroom to help high school and introductory-level physics students connect electromagnetic phenomena…
Descriptors: Physics, Science Experiments, Science Education, Demonstrations (Educational)
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Gelir, Ali; Kocaman, Merve; Pekacar, Ilgim – Physics Education, 2019
In conventional e/m experiments performed in undergraduate laboratories, generally a simple mechanical ruler is used to measure the radius of the circular trajectory of the electrons. But, the measurement error in this technique is mostly big and varies from one student to another. As an alternative to a mechanical ruler, we proposed a more…
Descriptors: Undergraduate Students, College Science, Science Laboratories, Science Experiments
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Wong, Marinela; Quast, Guenter; Braig, Dominik – European Journal of Physics Education, 2020
This paper describes a number of active learning strategies based on implementing the Raspberry Pi as low-cost single-board computing device for carrying out physics laboratory activities. This Microcomputer-Based Laboratory (MBL) Project has been funded by the Baden-Württemberg Foundation and it encompasses the use of high-accuracy yet…
Descriptors: College Science, Undergraduate Study, Physics, Educational Technology
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Kvittingen, Eivind V.; Kvittingen, Lise; Melø, Thor Bernt; Sjursnes, Birte Johanne; Verley, Richard – Journal of Chemical Education, 2017
This article describes a combined UV-photometer and fluorimeter constructed from 3 LEDs and a few wires, all held in place with Lego bricks. The instrument has a flexible design. In its simplest version, two UV-LEDs (355 nm) are used as light source and to detect absorption, and a third LED, in the visible spectrum (e.g., 525 nm), is used to…
Descriptors: Spectroscopy, Scientific Principles, Scientific Methodology, Light
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González, Manuel I. – Physics Education, 2017
Measuring voltage-current and voltage-power curves of a photovoltaic module is a nice experiment for high school and undergraduate students. In labs where real sunlight is not available this experiment requires a solar simulator. A prototype of a simulator using LED lamps has been manufactured and tested, and a comparison with classical halogen…
Descriptors: Simulation, Light, Lighting, Electromechanical Technology
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