Stella Report

7/30/2019 Stella Report

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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





Therefore, the next oscillation are 2.54s and 3.82s.


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String length:0.6m





Therefore, the next oscillation is 3.12s.


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String length:0.8m







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String length:1.0m







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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

http://www.google.com.my/url?sa=t&rct=j&q=&esrc=s&source=web&cd=7&ved=0CEcQFjAG

&url=http%3A%2F%2Fwww.cs.wright.edu%2F~jslater%2FSDTCOutreachWebsite%2Fpendul

um_exp.pdf&ei=s1i7UJWnF4PyrQfi44HwBw&usg=AFQjCNFviIuzeNlMvTSllpikor2k_J6YSA

&sig2=uuBrDHarkI4CJxr85jpQMw
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=600https://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=600https://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=600http://www.google.com.my/url?sa=t&rct=j&q=&esrc=s&source=web&cd=7&ved=0CEcQFjAG&url=http%3A%2F%2Fwww.cs.wright.edu%2F~jslater%2FSDTCOutreachWebsite%2Fpendulum_exp.pdf&ei=s1i7UJWnF4PyrQfi44HwBw&usg=AFQjCNFviIuzeNlMvTSllpikor2k_J6YSA&sig2=uuBrDHarkI4CJxr85jpQMwhttp://www.google.com.my/url?sa=t&rct=j&q=&esrc=s&source=web&cd=7&ved=0CEcQFjAG&url=http%3A%2F%2Fwww.cs.wright.edu%2F~jslater%2FSDTCOutreachWebsite%2Fpendulum_exp.pdf&ei=s1i7UJWnF4PyrQfi44HwBw&usg=AFQjCNFviIuzeNlMvTSllpikor2k_J6YSA&sig2=uuBrDHarkI4CJxr85jpQMwhttp://www.google.com.my/url?sa=t&rct=j&q=&esrc=s&source=web&cd=7&ved=0CEcQFjAG&url=http%3A%2F%2Fwww.cs.wright.edu%2F~jslater%2FSDTCOutreachWebsite%2Fpendulum_exp.pdf&ei=s1i7UJWnF4PyrQfi44HwBw&usg=AFQjCNFviIuzeNlMvTSllpikor2k_J6YSA&sig2=uuBrDHarkI4CJxr85jpQMwhttp://www.google.com.my/url?sa=t&rct=j&q=&esrc=s&source=web&cd=7&ved=0CEcQFjAG&url=http%3A%2F%2Fwww.cs.wright.edu%2F~jslater%2FSDTCOutreachWebsite%2Fpendulum_exp.pdf&ei=s1i7UJWnF4PyrQfi44HwBw&usg=AFQjCNFviIuzeNlMvTSllpikor2k_J6YSA&sig2=uuBrDHarkI4CJxr85jpQMwhttp://www.google.com.my/url?sa=t&rct=j&q=&esrc=s&source=web&cd=7&ved=0CEcQFjAG&url=http%3A%2F%2Fwww.cs.wright.edu%2F~jslater%2FSDTCOutreachWebsite%2Fpendulum_exp.pdf&ei=s1i7UJWnF4PyrQfi44HwBw&usg=AFQjCNFviIuzeNlMvTSllpikor2k_J6YSA&sig2=uuBrDHarkI4CJxr85jpQMwhttp://www.google.com.my/url?sa=t&rct=j&q=&esrc=s&source=web&cd=7&ved=0CEcQFjAG&url=http%3A%2F%2Fwww.cs.wright.edu%2F~jslater%2FSDTCOutreachWebsite%2Fpendulum_exp.pdf&ei=s1i7UJWnF4PyrQfi44HwBw&usg=AFQjCNFviIuzeNlMvTSllpikor2k_J6YSA&sig2=uuBrDHarkI4CJxr85jpQMwhttp://www.google.com.my/url?sa=t&rct=j&q=&esrc=s&source=web&cd=7&ved=0CEcQFjAG&url=http%3A%2F%2Fwww.cs.wright.edu%2F~jslater%2FSDTCOutreachWebsite%2Fpendulum_exp.pdf&ei=s1i7UJWnF4PyrQfi44HwBw&usg=AFQjCNFviIuzeNlMvTSllpikor2k_J6YSA&sig2=uuBrDHarkI4CJxr85jpQMwhttp://www.google.com.my/url?sa=t&rct=j&q=&esrc=s&source=web&cd=7&ved=0CEcQFjAG&url=http%3A%2F%2Fwww.cs.wright.edu%2F~jslater%2FSDTCOutreachWebsite%2Fpendulum_exp.pdf&ei=s1i7UJWnF4PyrQfi44HwBw&usg=AFQjCNFviIuzeNlMvTSllpikor2k_J6YSA&sig2=uuBrDHarkI4CJxr85jpQMwhttp://www.google.com.my/url?sa=t&rct=j&q=&esrc=s&source=web&cd=7&ved=0CEcQFjAG&url=http%3A%2F%2Fwww.cs.wright.edu%2F~jslater%2FSDTCOutreachWebsite%2Fpendulum_exp.pdf&ei=s1i7UJWnF4PyrQfi44HwBw&usg=AFQjCNFviIuzeNlMvTSllpikor2k_J6YSA&sig2=uuBrDHarkI4CJxr85jpQMwhttps://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=600https://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

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