Results 11 to 20 of about 55,539 (355)

Assessing students’ conceptual knowledge of electricity and magnetism [PDF]

open access: goldPhysical Review Physics Education Research, 2017
We present the Electricity and Magnetism Conceptual Assessment (EMCA), a new assessment aligned with second-semester introductory physics courses. Topics covered include electrostatics, electric fields, circuits, magnetism, and induction.
Michele W. McColgan   +3 more
doaj   +3 more sources

“The Principles of Magnetism and Electricity” [PDF]

open access: bronzeNature, 1901
THERE are two points occurring in the review (p. 434) of “The Principles of Magnetism and Electricity” in which the author appears to me to be correct, though the examples are given as instancing errors into which he has fallen. The reviewer states, “The author measures magnetic force in dynes and difference of potential in ergs,” thereby apparently ...
Llewelyn B. Atkinson
  +6 more sources

Maxwell's “Electricity and Magnetism.” [PDF]

open access: bronzeNature, 1889
THERE is apparently a trifling slip in § 360 of Maxwell's “Electricity and Magnetism.” The ratio of the resistance of pure iron at 100° C. to the resistance at 0° C. is there stated to be 1˙645. This ratio is evidently calculated from the results given in Matthiesen's paper on the influence of temperature on the electric conducting power of thallium ...
Herbert Tomlinson
openaire   +3 more sources

Comparing exploratory factor models of the Brief Electricity and Magnetism Assessment and the Conceptual Survey of Electricity and Magnetism

open access: yesPhysical Review Physics Education Research, 2019
While numerous studies have analyzed the conceptions probed by the Force Concept Inventory (FCI), assessments dedicated to electricity and magnetism lack similar analyses.
Philip Eaton   +3 more
doaj   +2 more sources

Electricity and Magnetism [PDF]

open access: yesUndergraduate Lecture Notes in Physics
In this two-part activity, students learn about electromagnetism by constructing electromagnets and observing their behavior. They will discover that there is a close relationship between electricity and magnetism in that moving magnets can induce ...
Teruo Matsushita
core   +2 more sources

Classical test theory and item response theory comparison of the brief electricity and magnetism assessment and the conceptual survey of electricity and magnetism

open access: yesPhysical Review Physics Education Research, 2019
For proper assessment selection understanding the statistical similarities amongst assessments that measure the same, or very similar, topics is imperative.
Philip Eaton   +3 more
doaj   +2 more sources

Multidimensional Item Response Theory and the Conceptual Survey of Electricity and Magnetism

open access: yesPhysical Review Physics Education Research, 2019
[This paper is part of the Focused Collection on Quantitative Methods in PER: A Critical Examination.] While many studies have examined the structure, validity, and reliability of the Force Concept Inventory, far less research has been performed on other
Cabot Zabriskie, John Stewart
doaj   +2 more sources

Exploring one aspect of pedagogical content knowledge of teaching assistants using the Conceptual Survey of Electricity and Magnetism [PDF]

open access: yesPhysical Review Physics Education Research, 2018
The Conceptual Survey of Electricity and Magnetism (CSEM) has been used to assess student understanding of introductory concepts of electricity and magnetism because many of the items on the CSEM have strong distractor choices which correspond to ...
Nafis I. Karim   +2 more
doaj   +2 more sources

Two-Dimensional Scattering Center Estimation for Radar Target Recognition Based on Multiple High-Resolution Range Profiles [PDF]

open access: yesSensors
A new estimation strategy on locations of two-dimensional target scattering centers for radar target recognition is developed by using multiple high-resolution range profiles (HRRPs).
Kang-In Lee   +2 more
doaj   +2 more sources

Home - About - Disclaimer - Privacy