CS108 Spring 2014
Week 4: Actual QUIZ Questions with Answers
Introduction to Computational Science
1. Computational science is the intersection of what 3 subjects?
a.
b.
c.
d.
e.
Math, Computer Science, and Environment
Math Computer Science and Science
Models, Computer Science and Statistics
Models, Computers and Math
Math, Statistics, and Science
Answer: b
Introduction to Agent-based Modeling
2. What are the 3 main phases in all agent-based models?
a) Setup, runtime loop and making the turtles move around
b) Creating turtles, scattering the turtles on the plane and setting their
color
c) Asking the turtles to scatter on the surface, move around the
surface and change the patch color
d) Asking the turtles to move on the surface, change the patch color
and exiting the program
e) Setup, runtime loop and exit
Answer: e
3. What are 3 abstractions in the runtime loop of an agent-based model?
a)
b)
c)
d)
e)
Agents with rules, the model environment, and time
Turtles, the model environment and exiting the program
Agents with rules, time and turtles
Patches, time and exiting the program
Agents with rules, turtles, and time
Answer: a
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4. What factors allow an agent-based model to produce different results upon
different runs with the same input parameters?
a)
b)
c)
d)
e)
The use of agent based variables
The use of random numbers in the model
The use of global variables
The use of input parameters
The use of patches in the model
Answer: b
NetLogo and the Random Walk
5. How do we generate a random walk?
a) right random 90
left random 90
forward 1
b) right 90
left 90
forward 1
c) right random 360
forward 1
d) left 360
forward 1
e) It is a automatic function in NetLogo
Answer : c
6. What is the range of integers generated by “random 360”?
a)
b)
c)
d)
e)
0 – 360
1 – 360
1 – 359
0 – 359
Just numbers around 360
Answer: d
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7. What is a uniform probability distribution?
a) Every number in the distribution has an equal probability of being used
when a random number is called for.
b) Only numbers that are regularly used are used when a random number
is called for.
c) Most numbers in the distribution are used all the time if a random
number is called for.
d) The probability that any number is used when a random number is
called for increases uniformly as the numbers increases.
e) The probability of using a number can only be determined by the user
one at a time.
Answer: a
NetLogo and Wiggle Motion
8. How do you generate a wiggle walk?
a) right random 90
left random 90
forward 1
b) right 90
left 90
forward 1
c) right random 360
forward 1
d) left 360
forward 1
e) It is a automatic function in NetLogo
Answer : a
NetLogo Programming
9. Predict a turtle’s heading once this procedure is run once.
to go
ask turtles
[
forward 1
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set heading random 45
right 90
]
end
a)
b)
c)
d)
e)
The turtle’s heading will be a random heading between 0 to 134 degrees;
The turtle’s heading will be between 0 to 44 degrees from its original heading;
The turtle’s heading will be a random heading between 0 and 90 degrees;
The turtle’s heading will be a random heading between 90 and 134 degrees.
The turtle’s heading will be between 44 to 90 degrees from its original
heading
Answer: d
Blown to Bits
10. Describe a property of a digital copy (made by a computer) and why that
property is important?
Possible Answer: A digital copy is an exact replica of something. Because the copy
is identical, the concept of an original copy no longer has meaning and making
digital copies of
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