This activity, although called inputs and outputs, illustrated for us the difference between analog and digital signals in computers. A helpful way for me to think about this was with those words connotated to watches and clocks.
5. unchecked, zero, not present
6. checked, one, present
7. when you switch 3 and 2 the answers to five and six switch
9. 38 to 5000
11. 1718
12. 1655
14. by switching the red and black wires
15. the electromagnet turns the reed switch on
16. normally closed
18. light shining = closed photoresistor
19. the more light, the more resistance in the photoresistor
20. reverse programming
21. leave it alone
Conclusion Questions
1. Because the lines touch for one side of it and don't for the other, it clearly displays the concepts of normally open and normally closed.
2. After doing some research, I found that the computer is able to understand digital signals because it uses an A/D converter.
3. As something becomes warmer, the molecules move faster and so there is less resistance.
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