Homework due for February 3, 2009

We have one last section from the text book to study and then we can begin review for our February exam and the final IGCSE exam. So, please read pages 144-153 and answer the following questions:

Pgs. 144-147

1) What are the advantages of 3-Dimensional graphical modelling compared with making scale models? (5 pts)
2) Describe 4 ways a team of archeologists would use 3-D modelling to investigate the remains of a Roman villa built in AD 300, which contains many buried domestic objects. (4 pts)

Pgs. 148-149

1) Give 3 examples of how number based models may be used. (3 pts)
2) Explain what is meant by optimum value. How do number based models help attain this? (3 pts)

Pgs. 150-153

1) What is the meaning of the term game play? Give a specific example from a game that you enjoy. (4 pts)
2) What do video game makers do to make their simulations as realistic as possible? (2pts)
3) In your own words, explain how simulators are used to train pilots. (4 pts)
4) List 2 benefits of computer simulation. (2 pts)
5) What is the meaning of the term vitural reality? (4 pts)

Homework due for January 16, 2009

Welcome back. I hope you had a restful break and are ready to charge to the finish line of the course. To begin this charge we are going to look at Data logging systems. Please read pages 136-141 and answer the following questions:

Pgs. 136-137

1. Explain how electronic temperature sensors work. (5 pts)
2. Explain why the electrical signal from a humidity sensor cannot be fed straight into a computer. (5-6 pts)

Pgs. 138-139

1. When analysing data logging systems you need to make several important decisions. Name 3 decisions that need to be made. (3 pts)
2. What are the choice of sensors you have? (3 pts)
3. Why is it important to calibrate sensors? (3 pts)
4. Can a calibrated sensor be used with any interface? Why or why not? (3 pts)

Pgs. 140-141

1. Often what type of systems are visual data logging systems? Where are these systems often located? (2 pts)
2. Give two examples of the use of visual data logging. (2 pts)
3. You own a nursery garden in which you have several large greenhouses. Explain how you would ensure that the environment in each greenhouse is right for the plants being grown. (4 pts)
4. What does feedback mean? Give a practical example. (2 pts)