Glossary
Wave A long body of water curling into an arched form and breaking on the shore.
Waves of energy Waves are the way energy moves from one place to another and therefore means waves are everywhere. Waves come from vibrating particles and therefore are made up of vibrating particles. A wave is able to transmit energy from one place to another without moving any physical matter over the same distance.
Medium Something such as water or air that something travels through.
Transverse Wave A wave with longer wave lengths similar to waves you would see in the ocean.
Compression Wave Waves that don't move up and down but through each other back and forth.
Frequency The amount of full wave is completed in one second.
Wave Length The length between two peaks of two waves.
Amplitude The height of a wave.
Electromagnetic Spectrum the range of wavelengths or frequencies over which electromagnetic radiation extends.
Visible Light is visible energy that you can see.
Infrared Radiation is invisible radiant energy.
Ultra-Violet Radiation also known as UV is the energy the sun provides Electromagnetic Waves are waves which can travel through the vacuum of outer space.
Reflection throwing back of light without absorbing it.
Refraction energy passing through a medium without being deflected or thrown back Concave is the outline or surface that curves inwards.
Convex is the outline or surface curved outwards.
Compression is an increase in pressure.
Rarefaction is a reduction in the density of something.
Sound Wave a wave of compression and rarefaction, that travels through a medium such as air.
Reverberation the extension of a sound.
Radio waves an electromagnetic wave of a frequency and used for used for long-distance communication.
Transmitter a piece of equipment used to transmit electromagnetic waves carrying messages or signals.
AM AM means amplitude modulation which is a method of impressing a signal on a radio carrier wave by varying its amplitude.
FM FM means frequency modulation which processes the information in a wave by varying the frequency of the wave.
Wireless communication is the transfer of information between two or more points that are not connected by an electrical conductor.
Microwaves an electromagnetic wave with a wavelength in the range 0.001–0.3 m, shorter than that of a normal radio wave but longer than those of infrared radiation.
Coaxial cables is a type of cabling used by the cable television industry and is also widely used for computer networks, for example Ethernet.
Optical fibers a thin glass fibre through which light can be transmitted.
Satellite dishes a bowl-shaped aerial, which signals are transmitted or received from a communication satellite.
Waves of energy Waves are the way energy moves from one place to another and therefore means waves are everywhere. Waves come from vibrating particles and therefore are made up of vibrating particles. A wave is able to transmit energy from one place to another without moving any physical matter over the same distance.
Medium Something such as water or air that something travels through.
Transverse Wave A wave with longer wave lengths similar to waves you would see in the ocean.
Compression Wave Waves that don't move up and down but through each other back and forth.
Frequency The amount of full wave is completed in one second.
Wave Length The length between two peaks of two waves.
Amplitude The height of a wave.
Electromagnetic Spectrum the range of wavelengths or frequencies over which electromagnetic radiation extends.
Visible Light is visible energy that you can see.
Infrared Radiation is invisible radiant energy.
Ultra-Violet Radiation also known as UV is the energy the sun provides Electromagnetic Waves are waves which can travel through the vacuum of outer space.
Reflection throwing back of light without absorbing it.
Refraction energy passing through a medium without being deflected or thrown back Concave is the outline or surface that curves inwards.
Convex is the outline or surface curved outwards.
Compression is an increase in pressure.
Rarefaction is a reduction in the density of something.
Sound Wave a wave of compression and rarefaction, that travels through a medium such as air.
Reverberation the extension of a sound.
Radio waves an electromagnetic wave of a frequency and used for used for long-distance communication.
Transmitter a piece of equipment used to transmit electromagnetic waves carrying messages or signals.
AM AM means amplitude modulation which is a method of impressing a signal on a radio carrier wave by varying its amplitude.
FM FM means frequency modulation which processes the information in a wave by varying the frequency of the wave.
Wireless communication is the transfer of information between two or more points that are not connected by an electrical conductor.
Microwaves an electromagnetic wave with a wavelength in the range 0.001–0.3 m, shorter than that of a normal radio wave but longer than those of infrared radiation.
Coaxial cables is a type of cabling used by the cable television industry and is also widely used for computer networks, for example Ethernet.
Optical fibers a thin glass fibre through which light can be transmitted.
Satellite dishes a bowl-shaped aerial, which signals are transmitted or received from a communication satellite.