1) What role does electronics play in our life? What most important inventions in the history of electronics can you mention?
2) What electric(al) and electronic appliances (white and brown goods) do you know? Which of them do you use? What for?
3) What properties can be measured in electric circuits? What are the units? What measurement devices are used to measure the properties?
4) What materials are used in electronics?
5) Describe the diagrams on pages 3 - 5. Learn the vocabulary on p. 6 to do so.
6) What electronic components are inside a mobile phone / a computer / a TV set / a radio?
Ad 1)
Read: http://en.wikipedia.org/wiki/Electronics to define electronics
Read: http://science.jrank.org/pages/2376/Electronics-History.html to learn about the history of electronics
Ad 2)
Electric and electronic appliances
There are many appliances, devices, gadget and technologies now used around modern homes that make our lives easier and more comfortable. They are usually powered by electricity. The smallest ones are sometimes battery-operated.
There are appliances, which help us do the cleaning, washing and washing up, cooking and keeping food fresh. Some of them are large and cannot be moved easily, others are small and portable.
These practical household appliances are called “white goods“ in British English because they are usually white.
Used for Appliance
cooking stove, cooker, microwave oven, toaster, electric kettle
food preparation food processor, blender, juicer
food storage fridge (refrigerator), freezer
cleaning dishwasher, washing machine, clothes dryer, vacuum cleaner, carpet cleaner, iron
personal care hair-dryer, electric razor, electric toothbrush
heating heater, air conditioning, fan
Another type of electronic appliances are called consumer electronics. Consumer electronics include electronic equipment intended for everyday use in entertainment, communications and office work. These appliances are called “brown goods” in British English, too, because they had originally wooden, wood-coloured or bakelite cases.
Used for Appliance
listening to music etc. CD and DVD player, radio / radio receiver, hifi tower, MP3 player, iPod
watching films TV, home cinema, DVD video, data projector
taking photos, making films camera, camcorder, web camera, scanner, copier (copying machine)
playing games video games console
many uses PC, notebook, PDA, smartphone
communication telephone, mobile phone (cell phone), answering machine, GPS receiver
making calculations calculator, mobile phone
Ad 3)
Measuring devices
ammeter measures electrical current I in amperes
voltmeter measures voltage U in volts
multimeter measures current, voltage, resistance and some other quantities
oscilloscope measures current, voltage, frequency, shows the waveforms of the current and voltage
Spectral / spectrum analyzer examines the spectral composition of some electrical, acoustic, or optical waveforms
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