Primjena zakona očuvanja energije i količine gibanja

master's thesis

• Title (english): Application of laws of energy conservation and momentum conservation
• Author: Darko Fras
• Mentor: Ana Sušac (mentor)
• Committee member: Maja Planinić (predsjednik povjerenstva)
• Committee member: Ana Sušac (član povjerenstva)
• Committee member: Matko Milin (član povjerenstva)
• Committee member: Emil Tafra (član povjerenstva)
• Committee member: Željko Skoko (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Physics); Zagreb
• Defense date and country: 2018-05-11, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract

Zakon očuvanja energije i zakon očuvanja količine gibanja dva su fundamentalna zakona fizike. Ovaj rad istražuje studentsko shvaćanje tih koncepata na prvoj godini dva tehnička fakulteta Sveučilišta u Zagrebu, Fakultetu elektrotehnike i računarstva i Građevinskog fakulteta. U istraživanju je sudjelovalo 45 studenata. Zadaci korišteni u istraživanju su srednjoškolske razine i ispituju razumijevanje i primjenu zakona očuvanja energije i zakona očuvanja količine gibanja, koncept pretvorbe različitih oblika mehaničke energije i koncept rada. Zastupljeni su zadaci različitih težina, od jednostavnih koji zahtijevaju primjenu samo jednog fizikalnog zakona, do kompliciranijih koji zahtijevaju korištenje više fizikalnih principa i više koraka u rješavanju. Analiziran je i utjecaj slika koje su studenti crtali na rješavanje zadataka. Studenti su loše riješili test ukazujući na poteškoće u razumijevanju i primjeni navedenih koncepata, a detaljna analiza rješenja i slika koje su studenti crtali ukazala je i na probleme u razumijevanju i vizualizaciji različitih fizikalnih situacija.

Abstract (english)

The law of conservation of energy and the law of conservation of momentum are two fundamental laws of physics. This study investigates student comprehension of these concepts at the first year of the two technical faculties of the University of Zagreb, the Faculty of Electrical Engineering and Computing and the Faculty of Civil Engineering. The research was conducted on 45 students. The problems used in the study are at high school level and they examine the understanding and application of the energy conservation law and the law of conservation of momentum, the concept of transformation of various forms of mechanical energy and the concept of work. Problems of different difficulties were used, from simple ones that require application of only one physical law, to more complex ones that require the use of more physical principles and more steps in solving. The impact of the figures that the students drew on problem solving was also analyzed. The students have poorly solved the test indicating to the difficulties in understanding and application of the concepts mentioned above, while a detailed analysis of the solutions and figures that the students have drawn has indicated to the problems in comprehension and visualization of various physical situations.

• Keywords: edukacijska fizika; rješavanje zadataka; zakon očuvanja energije; zakon očuvanja količine gibanja
• Keywords (english): physics education; problem solving; law of conservation of energy; law of conservation of momentum
• Language: croatian
• URN:NBN: urn:nbn:hr:217:617934
• Study programme: Title: Physics; specializations in: Education; Course: Education; Study programme type: university; Study level: integrated undergraduate and graduate; Academic / professional title: magistar/magistra edukacije fizike (magistar/magistra edukacije fizike)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2018-06-26 09:49:16