1. Beath High School - Int 1 Physics1 Intermediate 1 Physics Telecommunication Glossary aerial to earpiece fax to hertz loudspeaker to oscilloscope picture tube to receiver reflection to telephone transmitter to wavelength

2. Beath High School - Int 1 Physics2 aerial aerial to earpiece amplifier amplitude decoder earpiece part of a radio or TV which takes in all radio waves part of a radio or TV which increases the strength of a signal the height of a wave part of a radio or TV which takes the signal off the carrier radio waves part of a telephone in which is a speaker which changes an electrical signal to sound

3. Beath High School - Int 1 Physics3 fax fax to hertz FM frequency Geostationary satellite hertz a machine which sends a signal along telephone wires and makes a copy of a document at a distance frequency modulation – a way of sending high quality radio messages the number of waves each second a satellite which orbits once every 24 hours and stays above the same point on the equator the units for frequency

4. Beath High School - Int 1 Physics4 loudspeaker loudspeaker to oscilloscope mobile phone mouthpiece optical fibre oscilloscope this device changes electrical energy to sound in the earpiece of a telephone a phone which is both a transmitter and receiver and uses radio waves to communicate with a base station this is the part of a telephone which contains a microphone a long, thin piece of glass through which a beam of light can travel an instrument which displays pictures of electrical signals

5. Beath High School - Int 1 Physics5 picture tube picture tube to receiver pitch power supply radio waves receiver this device changes electrical energy to light in a television how high or low a sound is, e.g. a whistling kettle produces a high pitched note this is the part of a radio or television which supplies the amplifier with extra energy invisible rays of energy which can be used to carry signals the part of a communications system which takes in and replays the signal

6. Beath High School - Int 1 Physics6 reflection reflection to telephone reflector telecommunication telegraph telephone light “bouncing” off a shiny surface a shiny surface which light bounces off easily passing a message over a distance the use of wires to send a message, e.g. using morse code sending a sound message using wires, optical fibres or radio waves

7. Beath High School - Int 1 Physics7 transmitter transmitter to wavelength tuner wavelength the part of a communications system which sends out the signal the part of a radio or television which selects the station you wish the distance from the crest of one wave to the crest of the next wave

8. Beath High School - Int 1 Physics8 Intermediate 1 Physics Telecommunication End of Glossary