Electromagnetic Spectrum Flashcards
1
Q
List the mnemonic for the spectrum
A
Raging Men invaded Venus using x-ray guns
2
Q
List the spectrum
A
Radio waves, microwaves, infrared, visible light, ultra-violet, X-ray, gamma rays
3
Q
Advantages of digital signals
A
Greater range without loss of quality, faster rate of transmission and higher quality sound
4
Q
Frequency and wavelength on spectrum order
A
Increasing frequency and decreasing wavelength
5
Q
Use for radio waves
A
Radios and Tv signals
6
Q
Use of microwaves
A
Wireless internet
7
Q
Infrared uses
A
Remote controllers (short distance comms)
8
Q
Visible light uses
A
Photography
9
Q
UV light uses
A
Sterilisation
10
Q
X-ray uses
A
Photos to see inside bodies
11
Q
Gamma rays uses
A
Can kill cancer cells = diagnosis and treatment of cancer
12
Q
Speed that they all travel at
A
3x10 8m/s
