Chapter 4 Vocabulary & Questions

Vocabulary

Alternating Current (AC)

AM (amplitude modulation)

Analog transmission

Attenuation

Circuits

Conductor

Digital signal

Direct current (DC)

Electricity

Electrons

Electrostatic discharge (ESD)

FM (frequency modulation)

Impedance

Latency

Multimeter

Neutrons

Oscilloscope

PM (Phase Modulation)

Propagation

Protons

Questions

1. What are some examples of electrical insulators?

2. What are some examples of electrical conductors?

3. What are some examples of semiconductors?

4. What is silicon made of? Is it an insulator, conductor or semiconductor?

5. Do semiconductors allow the amount of electricity to be controlled?

6. When does voltage occur?

7. What is it called when static or resting, electrons move and a flow of charges is created?

8. What is the abbreviation for amps?

9. What is the abbreviation for resistance?

10. What is the difference between AC and DC?

11. How do you measure impedance? What is its abbreviation?

12. What three components are necessary to make up a circuit and how do they allow the control of current?

13. What equipment do you use to graph electrical waves, pulses and patterns?

14. What are some of the characteristics of an analog signal?

15. What is the basic building block of information on a data network?

16. What are the five sources of noise that can affect a bit on a wire?

17. At what speed do modern networks typically work?