Design and Validity of Student Worksheet Integrated Scientific Literacy for The Use of Physics Practicum KIT

Comprehensive information about nuclear reactor coolant materials for application in heat-transfer systems is very important. One important physical property that needs to be known is the thermal conductivity. The goal of this work is to predict the thermal conductivity value of the liquid lead, which is one of the important candidates for cooling materials for Gen-IV fast nuclear reactor designs. The thermal conductivity of liquid lead in this study was predicted using the Green-Kubo scheme and the molecular dynamics (MD) computational method to collect the simulation data. The MD simulation was done in the NVT ensemble, using the Lennard-Jones interaction potential. We observe the thermal conductivity of the liquid lead can be studied based on the diffusion physical process. The thermal conductivity of the liquid lead obtained from this research is λ = 0.0113T + 8.8539 [W/mK]. As a conclusion, this result is very suitable, compared with the available experimental data, then the Green-Kubo method can be used to calculate the thermal conductivity of liquid metal as lead.

Section: Thermal Conductivity Simulation Resultsmentioning

confidence: 99%

Thermal Conductivity of Liquid Lead for the Fast Nuclear Reactor Coolant, Calculated by the Green-Kubo Method Using Molecular Dynamics Simulation

Arkundato,

Syarifah,

Rohman

et al. 2023

“…Empirical validation analysis using Microsoft Excel software. A question item is said to be valid if the correlation between the question item score and the total score is significant or very significant in data processing (Hidayati et al, 2023).…”

Section: Test Validitymentioning

confidence: 99%

Analysis of the Quality of Scientific Literacy Question Items on Biodiversity Material Using the ANATES Application

Hervi,

Syamsurizal,

Arsih

et al. 2023

This research aims to analyze the quality of scientific literacy questions on biodiversity material using the ANATES application. ANATES (Test Analysis) is a computer application specifically developed to measure and evaluate the quality of exam questions. The research was conducted by collecting data from a collection of scientific literacy questions on biodiversity material and then analyzing it using ANATES. This type of research is descriptive quantitative. This research was carried out at Padang State University. The research subjects are Biology students in 2023 who are taking basic science courses. The population is all biology students in 2023 who are taking basic science courses. In this case, the sample used was only one class, namely biology education class C, totaling 35 people. The instrument used was scientific literacy questions on biodiversity material, totaling 25 questions. Next, the items are analyzed using ANATES to evaluate validity, reliability, level of difficulty, discriminating power, and distractor quality. The results of the analysis provide an in-depth picture of the quality of the scientific literacy questions on biodiversity material. It is hoped that the findings of this research can contribute to the development of better evaluation instruments for measuring students' understanding of biodiversity material. The implications of this research can be used by teachers, curriculum developers, and educational researchers to improve the quality of science learning at the secondary education level

“…From this data, it can be seen that mechanics is at the top of the other physics fields that experience misconceptions. The study of mechanics that is difficult for students to understand which results in misconceptions is Newton's Law of motion because it is material that requires students to be able to analyse questions (Shalihah et al, 2016;Hidayati et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

“…Newton's law of motion is essential in explaining physical phenomena in the reality, so this material is taught at various levels of education including elementary school, high school, and college (Sornkhatha & Srisawasdi, 2013). If students understand the concept of Newton's law, it will be easy for them to understand particle dynamics because Newton's law is the basic principle in particle dynamics in various problems of object motion (Hidayati et al, 2023). Newton's law of motion is one of the physics materials that often experience misconceptions because of its high level of difficulty and has quite a lot of forms of questions (Taqwa & Pilendia, 2018).…”

Section: Introductionmentioning

confidence: 99%

Analysis of Students' Physics Conceptual Understanding using Five-Tier Multiple Choice Questions: the Newton's Law of Motion Context

Putri,

Sundari,

Mufit

et al. 2024

Conceptual understanding is one of the physics learning objectives that can support students' thinking skills. Understanding of concepts in physics learning is very important for students, so that learning outcomes can be achieved maximally. This study aims to analyze the level of understanding of students' concepts on the topic of Newton's law of motion. This research is a descriptive research with quantitative approach. The research was at SMAN 4 Padang, SMAN 6 Padang, and SMAN 12 Padang West Sumatera. The total sample was 218 students. The five-tier multiple choice questions was used as a research instruments. Before the questions were used, the questions were tested first in different schools with the aim of knowing the validity, reliability, difficulty level, and distinguishing power of the items. After testing, 14 questions were obtained that could be used in this study. The results showed that 13.37% of students scienctific conception, 9.53% of almost scientific conception, 42.01% of students lack of confidence, 30.14% of students have misconceptions, 0.98% of students have no conception, and 3.96% of students have undefined. Based on these results, it can be concluded that students' conceptual understanding of Newton's law of motion material is still low.