3.1.1

5. unchecked, 0, notpresent

6. checked, 1, present

7. It was opposite reactions

9. 43 to 5000

11. 1521

12. 1360

14. switching the wires into the oposite positions

15. when the reed switch touches the electromagnet it gives out power

16. Normally Closed

18. the light shining means closed photoresister

19. more resistance more light

20. reverse the program

21. having it normal then it will be utilized

1. Examine the wire diagram on the mini switch and describe how the diagram relates to the concepts of normally open and normally closed.
The normally closed side of the mini switch makes it so that the switch completes the circuit at all times, making it a closed circuit.  ___ _ ___
The normally open part of the switch makes it so that you must press the switch to close the circuit. __/ __

2. If computers only understand digital signals, then how is a computer able to interpret the analog signals coming from the interface?
Maybe computers use simulations of the analog inputs, making digital signals to approximate their analog counterparts.

3. Why does resistance decrease as the NTC Resistor becomes warmer?
As the NTC Resistor gets warmer, the current is increasing. To keep the same voltage, the resistance must decrease.