Phys - EM Spectrum Flashcards
All waves transfer energy by?
Vibrating.
What are longitudinal waves?
Longitudinal waves vibrate in the same direction they are travelling in.
What is a wavelength?
The distance from one point to the next identical point.
What is amplitude?
The maximum height a wave vibrates from the rest point.
What is frequency?
The number of waves produce in one second (measured in Hertz - Hz)
All waves in the electromagnetic …
1) are transverse waves
2) travel at the speed of light in a vacuum
Which wave in the EM spectrum has the longest wavelength?
Radio waves.
Which wave in the EM spectrum has the shortest wavelength?
Gamma rays.
Which wave in the EM spectrum has the highest frequency?
Gamma rays.
Which wave in the EM spectrum has the lowest frequency?
Radio waves.
What is a transverse wave?
Transverse waves vibrate at 90’ to the direction they are travelling in.
