Want to know what this unit was all about? Well here is your very helpful summary: This unit was all about the electromagnetic system (definition listed below). We learned about energy and the things that trasnit it waves, waves have so many terms that define how strong/ how much energy it carries. This is important to understand because the different lengths and energies tell us different things when they bounce off objects. Understanding waves also helps us invent new technology like x-rays and radios.
Amplitude is how tall the wave is measured from the center line. This represents how much energy the wave carries.
Frequency is how fast a wave is moving. This is measured in Hertz.
The electromagnetic system isn't as complicated as it seems all it is, is range of different frequencies and wavelengths a wave can be. For example raido waves have the least energy and Gamma rays have the most. Scientist use it to study the universe because every frequency tells us different information when it bumps into something.
Wave length is the most complex just because of how many things are related to it, even thought the definition is quite simple. The wave length is the length between the topmost or bottom most part of a wave called crests and troughs. The shorter the wavelengths Two examples are Radio waves which have the longest wavelengths and are therefore the weakest (Least energy) , and Gamma rays which have the shortest wavelengths and are the strongest (Most energy).