ERIC Number: EJ1037497
Record Type: Journal
Publication Date: 2014-Jul
Abstractor: As Provided
Reference Count: 20
Classical Experiments Revisited: Smartphones and Tablet PCs as Experimental Tools in Acoustics and Optics
Klein, P.; Hirth, M.; Gröber, S.; Kuhn, J.; Müller, A.
Physics Education, v49 n4 p412-418 Jul 2014
Smartphones and tablets are used as experimental tools and for quantitative measurements in two traditional laboratory experiments for undergraduate physics courses. The Doppler effect is analyzed and the speed of sound is determined with an accuracy of about 5% using ultrasonic frequency and two smartphones, which serve as rotating sound emitter and stationary sound detector. Emphasis is put on the investigation of measurement errors in order to judge experimentally derived results and to sensitize undergraduate students to the methods of error estimates. The distance dependence of the illuminance of a light bulb is investigated using an ambient light sensor of a mobile device. Satisfactory results indicate that the spectrum of possible smartphone experiments goes well beyond those already published for mechanics.
Descriptors: Science Instruction, Telecommunications, Handheld Devices, Educational Technology, Technology Uses in Education, Statistical Analysis, Laboratory Experiments, College Science, Physics, Undergraduate Study, Acoustics, Measurement Techniques, Error of Measurement, Light
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Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education; Postsecondary Education
Authoring Institution: N/A