EM Spectrum Flashcards
1
Q
All the 7 colours on the rainbow from longest wavelength to shortest
A
Red, orange, yellow, green, blue, indigo, violet
2
Q
List 5 properties of electromagnetic waves
A
1.always travel at the same speed of 300,000,000 m/s
2.transverse waves
3.can travel through a vacuum
4.transfer energy
5.travel in straight lines
3
Q
Say the electromagnetic spectrum from longest to shortest wavelength
And long wavelength, low frequency, low energy all too what in what direction on the EM
A
Radio wave
Microwave
Infrared radiation
Visible light
Ultraviolet
X-rays
Gamma rays
4
Q
Uses of infra red
A
Electric toaster, remotes
5
Q
Uses for microwaves
A
Can penetrate through atmosphere to transmit to satellites
Energy absorbed to heat food microwave ovens
6
Q
Uses for Uv
A
Sunbeds, defecting forged bank notes
