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All Journal Charm Sains : Jurnal Pendidikan Fisika Jurnal FisTa : Fisika dan Terapannya
Rolles Nixon Palilingan
Fisika Universitas Negeri Manado
Astronomy Education Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics

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ANALISIS MISKONSEPSI SISWA PADA MATERI FISIKA DI SMA NEGERI 8 HALMAHERA TIMUR MENGGUNAKAN CERTAINTY OF RESPONSE INDEX (CRI) Feliks Robo; Rolles Nixon Palilingan; Aswin Hermanus Mondolang
Charm Sains: Jurnal Pendidikan Fisika Vol 2 No 2 (2021): JUNI
Publisher : Program Studi Pendidikan Fisika Jurusan Fisika Fakultas Matematika, Ilmu Pengetahuan Alam, dan Kebumian (FMIPAK), Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (501.932 KB) | DOI: 10.53682/charmsains.v2i2.118

Abstract

In the physics learning process, one of the things to look out for is developing a change in the student's concept that extends the concept from incomplete concepts to complete and perfect. These concepts often deviate from the correct concept. Misconception are initial concepts that are inconsistent with the scientific concepts agreed by experts. This departure from the concept is known as a misunderstanding. This study aims to determine the extent of student misunderstandings in physics material at SMA Negeri 8 East Halmahera using the Certainty Of Response Index. The subjects used in this study were 30 students from Class XII MIA at SMA Negeri 8 East Halmahera. Retrieving data in this study in the form of a multiple choice diagnostic test (reasoned multiple choice test) 50 numbers, accompanied by the CRI (Certainty of Response Index) of the students on Effort and energy 15 items, Temperature and Heat 17 items and 18 static electricity. The data were analyzed qualitatively. From the results of the data analysis, the following conclusion emerged: The degree of misconception of material temperature and heat was 47%. This was the ultimate misconception of the three materials. This proves that most of the students do not understand the material temperature and heat compared to the material from Effort and energy with a misunderstanding rate was 13%, and the static electricity where a misunderstanding occurred was 20%. Overall, the misunderstanding among students is still low at 35%.
HILANG PANAS ALAMIAH DAERAH MANIFESTASI PANAS BUMI UNTUK ESTIMASI POTENSI SUMBER DAYA SPEKULATIF ENERGI PANAS BUMI DISEKITAR GUNUNG TAMPUSU Almasih Mayumi Rontos; Rolles Nixon Palilingan; Cyrke A. N. Bujung
Jurnal FisTa : Fisika dan Terapannya Vol 2 No 1 (2021): APRIL
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/fista.v2i1.99

Abstract

Geothermal energy is one of the new and renewable alternative energy sources that are environmentally friendly. Indonesia is one of the countries in the world that has large geothermal reserves. The appearance of a manifestation that appears to the surface indicates the potential for geothermal energy in an area. This study aims to calculate the amount of natural heat loss to determine the potential of speculative resources. Research using natural heat loss calculations is the initial stage in starting geothermal exploration. In the area around Mount Tampusu, Remboken District, Minahasa Regency, North Sulawesi Province, there are surface manifestations that can be seen from the heat loss and speculative resources. This research was conducted by taking data in the field and processing the data using the natural heat loss equation in each manifestation. Based on the research results, the total natural heat loss in manifestations around Mount Tampusu is 17,16 mW and the speculative resources are 171,6 mW.
ANALISA KINERJA DEMISTER SELAMA TAHUN 2019 DI PLTP LAHENDONG Gisella Gabriella Tangkere; Rolles Nixon Palilingan; Jeferson Polii
Jurnal FisTa : Fisika dan Terapannya Vol 2 No 1 (2021): APRIL
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/fista.v2i1.101

Abstract

Geothermal is now widely used by several developed countries, there are very many roles of geothermal energy sources, it is necessary to use one of them by utilizing geothermal heat energy itself into electrical energy. In chemical process industry there are a number of processes where a gas and a liquid come into contact with each other and whenever this happens, the gas will introduce a number of liquid particles. This liquid phase carried over to the gas phase can cause a number of problems such as equipment breakdown, process inefficiency etc, and need to be eliminated. Equipment used to remove entrainment is known as a Demister. This study aims to calculate Demister Efficiency throughout 2019 at PLTP Lahendong. Research conducted is to collect data at the Lahendong Geothermal Power Plant Unit-2 and this research uses data processing methods that use applications, namely steam tables and Microsoft Excel. Demister's performance in 2019 for 3 months got 88.90% J results which were influenced by heat loss, pressure and inner diameter, from results obtained after processing it can be concluded that the higher the heat loss value, better the efficiency value, Explains that performance Demister arguably had no problems in a year.
ANALISIS PENGARUH SUHU DAN TEKANAN UDARA TERHADAP DAYA ANGKAT PESAWAT DI BANDARA SAM RATULANGI MANADO PERIODE 2010-2019 MENGUNAKAN METODE KORELASI PEARSON PRODUCT MOMENT Kevin C. Emor; Rolles Nixon Palilingan; Donny Royke Wenas
Jurnal FisTa : Fisika dan Terapannya Vol 2 No 1 (2021): APRIL
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/fista.v2i1.103

Abstract

Temperature and air pressure are two elements of meteorology that are interrelated because air pressure together with temperature will determine the air density and will then determine the lift of an airplane. One of the disturbances that affect flight operations (lift) is temperature and air pressure. Research has been carried out, namely to determine the effect of air pressure and air temperature on flight operations (lift). Pearson Product Moment Correlation Analysis Method is a method used to determine how much the value of the relationship between temperature and air pressure on flight operations (lift) .From the results of research at Sam Ratulangi airport in Manado, it shows that the relationship between temperature and air pressure is very strong on flight operations in particular (Lift) on the airplane. By using data on F - Klim 71 in 2010 - 2019 the strongest relationship occurred in November and December with the determining coefficient values ​​of 97.29% and 99.91. Air pressure and air temperature together have a strong influence on flight operations specifically "lift". Meanwhile, air temperature tends to have a stronger influence on flight operations (lift) than air pressure.
ANALISA PERBANDINGAN PRESSURE DROP METODE LOCKHART MARTINELLI, HOMOGENOUS DAN HARRISTON FREESTON DARI DEMISTER KE TURBIN PADA UNIT 2 PLPT LAHENDONG Rigitha Petrisia Raco; Rolles Nixon Palilingan; Jeferson Polii
Jurnal FisTa : Fisika dan Terapannya Vol 2 No 1 (2021): APRIL
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/fista.v2i1.105

Abstract

The development of technology, population and inovation from day to day is increasing. This causes the world's energy needs to increase as well. This causes both developed and developing countries including Indonesia to take advantage of every alternative available energy resource, both renewable energy and non-renewable energy. One of the uses of renewable energy for national energy sufficiency is geothermal resources, Indonesia's strategic location causes Indonesia to have a lot of potential geothermal resources and because of that these geothermal resources must be processed as efficiently as possible to help meet national energy needs. One of the causes of the reduction in the efficiency of processing geothermal resources is the pressure drop that occurs from the demister to the turbine, this study aims to determine the pressure drop that occurs from the demister to the turbine at PLTP-2 Lahendong using 3 methods, namely Lockhart Martinelli, Homogenous and Harrison Freeston. . The results of the calculation of these 3 methods are then compared with real data in the field to find out which method is the most aaccurate and closest to use. Based on research, the turbine inlet pressure from the Homogenous method, Lockhart Martinelli and Harisson Freeston are 6.59bar, 7.25bar and 7.84 bar respectively and the level of accuracy compared to real data is 92%, 97% and 90%, respectively.
Co-Authors Almasih Mayumi Rontos Aswin Hermanus Mondolang Cyrke A N Bujung Donny Royke Wenas Feliks Robo Gisella Gabriella Tangkere Jeferson Polii Kevin C. Emor Rigitha Petrisia Raco