Pulley System Extended Essay
INTERNATIONAL BACCALAUREATE
EXTENDED ESSAY
PHYSICS
The simple Pulley system and its efficiency
Research Question:
“How does the length of wire and thickness of wire affect the efficiency of Atwood’s machine?”
NAME: MUHAMMAD HARIZ BIN MD YUSUF
MAY SESSION 2013
CANDIDATE NUMBER:
002348-086
CENTRE: MARA COLLEGE SEREMBAN, JALAN AMINUDDIN BAKI, 70100 SEREMBAN, NEGERI SEMBILAN, MALAYSIA.
NUMBER OF WORDS: 3592
NUMBER OF PAGES: 34
Abstract
The thickness and the length of wire are the properties which affect the efficiency of pulley system. To find out the best length and thickness of wire and rope that suitable to use in a pulley system, an experiment is conduct by using various thickness and length of wire with the fixed type of wire and masses in the system included the weight and glider. This is suitable according to its research question, ‘How does the length of wire and thickness of wire affect the efficiency of Atwood’s machine?’ This research is to solve the problems of finding the suitable length and thickness of wire need to use in a pulley system to achieve the maximum efficiency of the machine. In the early of experiments, research question and variable is designed. Then, all the apparatus and material needed in the experiment arrange according to the methodology constructed. The comparison is carried out then by observing and analysing the graph form from the various thickness of wire that has the same length for each length been used in the experiment, which 0.2m, 0.4m 0.6m, 0.8m and 1.0m. While the thickness of wire that has been used in the experiments are 0.20mm, 0.25mm, 0.30mm, 0.35mm, and 0.40mm. The entire graph formed, then is observed thoroughly to find out the relationship between the efficiency and the thickness and length of wire.
At the end of experiment, a conclusion is gained and hypothesis is accepted, although there some errors in the experiment due to some limitations and weaknesses. After data
EXTENDED ESSAY
PHYSICS
The simple Pulley system and its efficiency
Research Question:
“How does the length of wire and thickness of wire affect the efficiency of Atwood’s machine?”
NAME: MUHAMMAD HARIZ BIN MD YUSUF
MAY SESSION 2013
CANDIDATE NUMBER:
002348-086
CENTRE: MARA COLLEGE SEREMBAN, JALAN AMINUDDIN BAKI, 70100 SEREMBAN, NEGERI SEMBILAN, MALAYSIA.
NUMBER OF WORDS: 3592
NUMBER OF PAGES: 34
Abstract
The thickness and the length of wire are the properties which affect the efficiency of pulley system. To find out the best length and thickness of wire and rope that suitable to use in a pulley system, an experiment is conduct by using various thickness and length of wire with the fixed type of wire and masses in the system included the weight and glider. This is suitable according to its research question, ‘How does the length of wire and thickness of wire affect the efficiency of Atwood’s machine?’ This research is to solve the problems of finding the suitable length and thickness of wire need to use in a pulley system to achieve the maximum efficiency of the machine. In the early of experiments, research question and variable is designed. Then, all the apparatus and material needed in the experiment arrange according to the methodology constructed. The comparison is carried out then by observing and analysing the graph form from the various thickness of wire that has the same length for each length been used in the experiment, which 0.2m, 0.4m 0.6m, 0.8m and 1.0m. While the thickness of wire that has been used in the experiments are 0.20mm, 0.25mm, 0.30mm, 0.35mm, and 0.40mm. The entire graph formed, then is observed thoroughly to find out the relationship between the efficiency and the thickness and length of wire.
At the end of experiment, a conclusion is gained and hypothesis is accepted, although there some errors in the experiment due to some limitations and weaknesses. After data
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