1. The document discusses Stella, a software that allows users to create dynamic models to visualize and understand complex systems. 2. Stella can be used to model various systems and scenarios, from climate change to economics to chemistry. It supports visual, numeric, and text-based learning. 3. An example is provided of using Stella to model a bungee jump, demonstrating relationships between factors like mass, gravity, cord elasticity, and motion over time. Controls allow manipulating variables to see their effects.

2. SSI3013: Information And Communication
Technology In Sciences
En. Azmi
Bin ibrahim
SHAFIQ FAIZ

3. STELLA
Stella is a systems thinking for education and research. It’s offers a practical
way to dynamically ,visualize and communicate how complex systems and
ideas really work whelter they are first time or experienced modelers, teachers
,students and researchers use Stella to explore and answer endless question.
•How does climate change influence an ecosystem over time?
•Would Hamlet’s fate have changed if he’d killed Glaudius earlier?
• How do oil prices respond to shocks in supply and demand?
•What will happen when the ozone layers is gone?
•How do basic macroeconomic principles affect income and consumption?
Easy-to-use, Stella models model provides endless opportunities to explore by
asking “What it” and watching what happens , inspiring the exciting moments
of learning. Thousands of educations and researchers have made Stella the
gold standard , using it to study everything from economics to physics.
Literature to colours , chemistry to public policy ,college and researchers
communities all recognized Stella’s unique ability to stimulate learning.

4. Stella models allow you to communicate how a system works, what goes
in , how the systems impacted ,what are the outcomes . Stella supports
diverse learning styles , with a wide range of storytelling feature.
Diagrams ,chart and animation help visual learners discover relationships
between variables in an equation . Verbal learners might surround visual
models with words or attach document to explain the impact of a new
enviroment policy. Example

5. ADVANTAGES
Shorter
development
cycle for each
model
Very readable
code
Standardized
features often
needed in
modeling
Much
assistances in
model
verification

6. DISADVANTAGES
Additional
training required
Higher
software cost
(up-front)
Limited portability

7. BUNGEE JUMPING VIRTUAL

8. INTRODUCTION
Bungee jumping is relatively new sport. The jump it self is related to the
ritualistic practices of “land divers” from the Pentecost Island in the Pacific
Archipelago of Vanuatu . These men demonstrated their courage by jumping off cliffs
while attached to vines ; they do this in hope of a plentiful harvest of Yams. In 1997
,the Oxford University Dangerous Sport Club jumped off a bridge themselves after
being inspired by a film about the vine jumpers. During the 1980’s ,the sport
flounshed in New Zealand and Frances and was brought into the United State by John
and Peter Kockelman of California. In the early 1990’s facilities sprang up all over
the country with cranes ,towers and hot air balloons serving as platforms
I use the software Stella from isee systems to model a bungee jump. Bungee
Jump is a simple Harmonic Motion , having many component with relationship. For
example , student can use Stella to model the bungee jump the relationship between
the mass , the displacement and the gravity and strands in bungee cord.
The intent of the project is to develop an understanding of the mathematics
and physics involved in determining the motion of a person bungee jumping from a
platform a certain height . Newton’s second law of motion which is for every force
there is an equal and opposite reaction .

9. Hooke’s law which is related to the elasticity of the bungee cord , some
of the basic laws of physics such as force which in this case referred as gravity,
different approximations of nation for the jumper. The free fall of the jumper , as
well as the damped harmonic motion during the influences of the bungee cord ,
will be analyzed . The effect of height , mass ,gravity and elasticity of bungee
cord is included in this stimulation.

10. VIRTUAL BUNGEE JUMP:INTERFACE
The background and context menu, this menu is telling us
about the application of this experiment in daily life.
The objective is to obtain the perfect bungee cord for
chosen weight and gravity by neglecting the air resistance.

11. VIRTUAL BUNGEE JUMP: SIMPLE EXPERIMENT
Point A show that the length of the bungee cord initially which can be
read at Point D column ( Altimeter reading ). Point B and C is a knob that
uses to manipulated the weight of the bungee jumper (load attached to
bungee cord ) and strands of the bungee cord. Point D also show three
column which can be change it unit of measurement by double clicking
the column. Point G is the button where student need to click if student
want to start the experiment, while Point F is the button to click if
student want to stop the experiment immediately at any point.

12. 1.
2.
3.

13. The bungee jump is calculated graphically and the knob is added to
four. Meaning in this Extended Experiment, you can manipulated
more factors that effecting the bungee jump such as gravity, height
of platform and strands in bungee cord.

16. This map it show all the relationship in physic view for
bungee jump. With this, student can see clearly how the
simulation take place. Starting from the height of
platform is the calculation is displacement from
platform measure by altimeter.

17. This graph show the real equation and calculation in the bungee
jump virtual simulation. In this part student can change the title,
time, equation, graph and unit of the bungee jump virtual model.

18. Student can change the name, value of knob, words, and
anything that related to the knob in the Extended
Experiment or Simple Experiment. Same as other button
function.

20. The physical and computer models are dynamic. The
students can see what happens when a rainfall event
occurs and understand the role of retention/detention
ponds in reducing flash flooding and sediment pollution. It
is rare that dynamic phenomena can be seen in the field.
Video and slides frequently do not convey the dynamics of
natural and anthropogenic processes, in part because they
are not interactive.