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5 Written Questions

1. The bouncing of light off of a medium
2. Electromagnetic waves (microwaves)
3. Phenomenon which the sound waves is being squeezed together makes the frequency of the sound you hear different from the actual frequency of the sound when it was made.
4. When using wireless devices there is no need to use
5. Wavelengths from smallest to largest of visible light

5 Matching Questions

1. 8
2. losing connectivity
3. Hertz
4. radio waves
5. AM

1. a Amplitude modulation
2. b Wireless allows people to move without...
3. c Amount of devices able to be connected to Bluetooth at once
4. d non-ionising radiation include
5. e A unit for frequency

5 Multiple Choice Questions

1. The amount of radiation recieved by using a mobile phone for 20 minutes is the same as being in Wifi "hotspot" for a ...
   1. year
   2. radar
   3. Red
   4. Radar
2. The region of the earth's upper atmosphere containing a small percentage of free electrons and ions
   1. Reciever
   2. ionosphere
   3. Duplexer
   4. Violet
3. Frequency Modulated
   1. AM
   2. Red
   3. FM
   4. year
4. the most common microwave oven
   1. Compact Microwave oven
   2. Counter top Microwave oven
   3. Built in Microwave oven
   4. Medium capacity Microwave oven
5. An electronic switch where it transfers the antenna connection from the reciever to the transmitter.
   1. Radar
   2. Violet
   3. Reciever
   4. Duplexer

5 True/False Question

1. Speed of light → Gas, Chemical, Dye, Solid-State, Metal-Vapor, Semiconductor, Free Electron Lasers
   

   True        False

2. industrial, scientific and medical devices → ISM devices
   

   True        False

3. frequency → The dish shaped part of the Radar system.
   

   True        False

4. wavelength → Distance between two crests, or two troughs, or the distance between any two corresponding points on neighbouring waves
   

   True        False

5. electromagnetic spectrum → 1) Transverse waves 2) Unable to travel through some substances but travel through a vaccum 3) Speed in air about 300,000,000m/s
   

   True        False