The EM Spectrum
Radio Communication
Electromagnetic
Waves
Electromagnetic Wave Uses
Random
100
Wave with the longest wavelength in the spectrum
What are Radio Waves
100
The A in AM stands for what?
What is Amplitude
100
What creates an electromagnetic wave?
What is a vibrating electric charge.
100
What type of wave is absorbed by ozone?
What is Ultraviolet
100
An area that contains no matter is called a _____.
What is a vacuum.
200
Waves with the shortest wavelength and highest frequency in the electromagnetic spectrum
What are Gamma Rays
200
The F in FM stands for what?
What is frequency
200
What 2 components make up an electromagnetic wave?
What is an electrical and magnetic.
200
What electromagnetic wave cannot be absorbed by bone, making it useful for medical purposes?
What is X-Rays
200
A particle that carries radiant energy is called a ______.
What is a photon.
300
This is the part of the electromagnetic spectrum that we can see.
What is visible light
300
The frequency that the radio waves carry their information on is called a _________ wave.
What is a "Carrier Wave"
300
What type of energy do electromagnetic waves carry?
What is radiant energy
300
Which electromagnetic wave is used in MRIs?
What are Radio Waves
300
What is a molecule made of 3 oxygen atoms?
What is ozone.
400
These waves of the spectrum are also called "Heat Waves"
What are Infrared Waves
400
True or False. Radio waves carry sound
False. They carry information for the radio to make the sound.
400
If an electromagnetic wave has a shorter wavelength and higher frequency, it has more _________.
What is energy.
400
What type of wave lets have things like thermal imaging cameras?
What are infrared waves
400
A changing electric field creates a _________ field.
What is a magnetic field
500
These are the waves that are technically considered a type of radio wave. They are just larger than infrared waves.
What are Microwaves
500
When listening to a radio station, it broadcasts a certain frequency like 107.7 or 105.7. What unit should go after that number?
What is Megahertz
500
What is the speed of light in vacuum?
What is 300,000 km/s
500
What technology uses radio waves to detect the position and movement of objects. It was developed just before World War II
What is RADAR
500
What direction do electric field lines travel?
What is Positive to Negative.
M
e
n
u