100 points, Watch the video and answer the questions. All answers are in the video. https://www. you. tube. com/watch?v=sRX2EY5Ubto
( remove the . in between you and tube)

What are radio frequency (RF) signals made of?
Describe an electromagnetic wave.
How is electromagnetic radiation different from nuclear radiation?
RF waves travel at the speed of .
Lower wavelength = frequency
An antenna must the wavelength, the better the match, the better the .
The shape and size of an antenna depends on
How do directional antennas increase the amount of RF signal that make it to your receiver?

Radio waves can be thought of as or depending on the scientific principle.
RF can travel through air, space and walls, but not through .
How is RF affected by rain?

How do trees affect RF?

How do tall buildings affect RF?