stella report
TRANSCRIPT
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AHMAD NUR FAIZ BIN ABU BAKAR
STELLA SOFTWARE REPORT
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1.0 INTRODUCTION AND STUDENT MOTIVATION
Simulations in teaching is a teaching proses that copy the exactly what we are study
about through the action. The simulations in teaching are important because it is specific skill
training of good profesional character would even for day to day life. Other than that, it alsohelps student to gain an understanding of a concept or principle, practice solving the problems,
improving learning activities. It also helps student to motivate themselves, teach student to learn
how to manage a teamwork in group, expand the students creativity and being more tolerate.
The basic of simulation is the positive interaction between teachers and students also between
student themselves. This is to create and achieve the aim of study by choosing the specific and
accurate method. There are so many model that can be used to develop the best interaction and
communication between students and teachers. Teaching in simulation as a polar that can be
used to develop curriculum, planning the teaching materials, and conduct the teaching in classes.
Teachers can use the model teaching in difference ways that suitable and efficient to educate.
The teaching by simulation can be used as a teaching method with the assumption that not all
teaching proses can do in live at the real situation. Therefore to create and expand the students
understanding is more toward to psychomotor, and the teaching by simulation can be the best.
Advantage of simulation in teaching.
Based on proses of simulation of teaching, there are many advantages directed among thestudents. Fortunately, simulation can be role model for student to adapt the surrounding
especially the different environment such as in family, public, and last but not least is in work
world. In addition, simulation in teaching can improve the student to be more strong and brave
by what they are doing directly to the learning and believe in themselves. Other than that,
simulation helps to increase the knowledge, behavior, and attitude needed in controlling the
social situation. It also will keep growing the spirit of the students.
Disadvantages simulation in teaching.
Every method of teaching will have a advantages and disadvantages. Therefore, the
disadvantages of simulation in teaching are every experience that students achieve by the
simulation, exactly not really accurate and suitable. If the teachers are not really know how to
conduct the activity, the simulation will change to the entertainment in class and the objective
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truly not exactly get. The psychology factor such as shy and afraid totally affected students in
doing the simulation. Other than that , simulation also helps reducing the cost for some
experiment that students cannot effort of it.
STELLA is one of the best simulation program or software that helps student to understandbetter in some concept because we can see what the purpose that we need to understand in
certain field although it very easy to handle. STELLA used to enable students to be creative to
change a system that we want to do but it has obstacles. Therefore, teaching by simulation is can
be best by using STELLA.
For example of experiment is pendulum. This experiment had been done in the previous school,
but not all student can understand the pendulum experiment. Only the student that have good
education can effort it. This is because of the mentality and how there try to understand in someconcept are difference.
2.0 EXPERIMENT OF STELLA SIMULATION: THE PENDULUM
Title of Experiment:
The Pendulum
Objective:
To determine the relationship between the length of the string and the time taken for one
complete oscillation.
Hypothesis:
As long as the length of string is increased, the time taken for one complete oscillation is
also increased in a constant mass.
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Introduction:
The pendulum is a body suspended from a fixed point so as to swing freely to and fro
under the action of gravity.
The pendulum serves as an illustration of Newtons Second Law, wh ich states that for every
force there is an equal and opposite reaction. The object swing from the starter point A to B and
swing back from B to A. That we called 1 oscillation complete.
AB
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The pendulum will swing through small displacements from its rest position at a fixed period
(i.e., move from one side and return to that side) that is dependent on the length of the string and
the acceleration of gravity. The symbol of period is T. This is given by:
The unit for this equation is second(s). L is the length of the string and the G is the gravitational
acceleration (9.8 m/s)
Notice that the weight of the bob does not show up in this equation. This means that no matter
what the weight, a bob that is suspended on a certain length of string will take the same time to
complete a prescribed motion, for example, 10 cycles. Notice that the angle that the pendulum
swings through does not show up in the equation either! This means that the period is
independent of the angle of swing. This is true whether you swing the pendulum a little bit or a
larger amount, say 15 degrees (for very large angles, you will observe a difference). The
following is description of experiments that will illustrate these points. We will describe what
you can measure, how you can present the results, and what you can calculate to verify thetheory. In this experiment we try to use the constant weight of bob pendulum.
Material:
Stella software only
Background:
Consider what happens when you connect a small ball (or bob) to the end of a string. When the
bob is pulled a short distance away from its rest position and released, it will begin to swing back
and forth. This system is called a simple pendulum and the type of motion is called simple
harmonic motion.
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In this system it is assumed that the mass of the bob is concentrated at a point and that the mass
of the string is negligible.
In this model, you will explore the effect that string length, bob mass, and initial starting position
have on the motion of the pendulum, ignoring the effects of friction and air resistance. Then, you
will investigate how the motion is changed when other forces are taken into account.
Data analysis:
In this experiment that has been carried out, previous I had mention that we use the
constant weight of pendulum bob that is 1 kilogram (kg). Displacement also constant. The length
of the string that I used are 0.2m, 0.4m, 0.6m, 0.8m, and 1.0m.
String length : 0.2m
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The graph above is displacement, S (m) versus period T(s). the experiment was set up by string
length is 0.2 m. the pendulum is released on the height or amplitude of 0.1 m as a speed of
pendulum bob is constant. Mass of pendulum bob also constant. The air friction is totally
negligible. When the pendulum bob swing in complete oscillation the time taken is 0.9s.
Therefore, the next oscillation are 1.8s, 2.7s and 3.6s.
String length: 0.4m
The graph above is displacement, S (m) versus period T(s). the experiment was set up by string
length is 0.4 m. the pendulum is released on the height or amplitude of 0.1 m as a speed of
pendulum bob is constant. Mass of pendulum bob also constant. The air friction is totally
negligible. When the pendulum bob swing in complete oscillation the time taken is 1.26s.
Therefore, the next oscillation are 2.54s and 3.82s.
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String length:0.6m
The graph above is displacement, S (m) versus period T(s). the experiment was set up by string
length is 0.6 m. the pendulum is released on the height or amplitude of 0.1 m as a speed of
pendulum bob is constant. Mass of pendulum bob also constant. The air friction is totally
negligible. When the pendulum bob swing in complete oscillation the time taken is 1.56s.
Therefore, the next oscillation is 3.12s.
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String length:0.8m
The graph above is displacement, S (m) versus period T(s). the experiment was set up by string
length is 0.2 m. the pendulum is released on the height or amplitude of 0.1 m as a speed of
pendulum bob is constant. Mass of pendulum bob also constant. The air friction is totally
negligible. When the pendulum bob swing in complete oscillation the time taken is 1.80s.
Therefore, the next oscillation is 3.6s.
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String length:1.0m
The graph above is displacement, S (m) versus period T(s). the experiment was set up by string
length is 0.2 m. the pendulum is released on the height or amplitude of 0.1 m as a speed of
pendulum bob is constant. Mass of pendulum bob also constant. The air friction is totally
negligible. When the pendulum bob swing in complete oscillation the time taken is 2.0s.
Therefore, the next oscillation is 4.0s.
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The graph below is the differences between length of spring 0.2m, 0.4m, 0.6m, 0.8m and 1.0m
by different colour.
Conclusion:
The length of spring is increase, therefore the time taken for one complete oscillation is
increase too. Then, the hypothesis and objective is accepted.
3.0 CONCLUSION OF STELLA SOFTWARE
The experiment or simulation that carried out by STELLA SOFTWARE has own specialand advantages that help student understand in some concept in certain field. Therefore, teacher
is allow to use this STELLA SOFTWARE because this will help student to more understand and
directly get a excellence result to their exams.
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4.0 REFERENCE
Nicholas J. Giordano (2011). College Physics. International Student Edition
Retrieved from
https://www.google.com.my/search?q=pendulum+experiment&hl=en&tbo=u&tbm=isch&source
=univ&sa=X&ei=2iW7UPvaDI3trQfb34DIBw&sqi=2&ved=0CDAQsAQ&biw=1366&bih=600
Retrieved from
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&url=http%3A%2F%2Fwww.cs.wright.edu%2F~jslater%2FSDTCOutreachWebsite%2Fpendul
um_exp.pdf&ei=s1i7UJWnF4PyrQfi44HwBw&usg=AFQjCNFviIuzeNlMvTSllpikor2k_J6YSA
&sig2=uuBrDHarkI4CJxr85jpQMw
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