Effects of physical models and simulations to understand daily life applications of electromagnetic induction
AbstractBackground: One of the topics students have difficulties in understanding is electromagnetic induction. Active learning methods instead of traditional learning method may be able to help facilitate students’ understanding such topics more effectively.Purpose: The study investigated the effectiveness of physical models and simulations on students’ understanding daily life applications of electromagnetic induction.Sample: The nine participants in the study were voluntaries from the fourth year of the physics education undergraduate programme.Design and methods: Lessons were designed to enhance students’ conceptual understanding of electromagnetic induction. Researchers developed multiple generator and simple electric motor models. These models and simulations about Faraday’s Law, magnetic field, magnets, generator and radio waves were used in lessons. The data were collected through open-ended questionnaire and semi-structured interview. Open-ended questionnaire was employed in a pre-test and a post...
The paper adopts the finite element analysis software to analyze the influence of different thickness and strength of the pile tip,concludes the influential law of the sediment thickness and strength on the dynamic signal,points out the correct judgment methods of the pile tip's location with the sediment,and proves the correctness of the method by comparing the measured signal.