5 Waves Flashcards
Amplitude
The max displacement of a particle from the midpoint of the oscillation (m)
Time period
The time taken to complete one oscillation (s)
Frequency
The number of oscillations per second (Hz)
Wave speed
The distance travelled by the wave each second (m/s)
Wavelength
The distance between consecutive points at which oscillations are in phase
Equation linking frequency and time period (learn)
f= 1/T
Equation velocity frequency and wavelength
V=f x wavelength
Longitudinal waves
When particles oscillate in the same direction as the wave travel
Transverse waves
When particles oscillate perpendicular to the wave direction
Wavelength of gamma rays
10^-16 to 10^-11
Wavelength of x-rays
10^-14 to 10^-10
Wavelength of ultra violet
10^-10 to 10^-8
Wavelength of visible light
4x10^-7 to 7x10^-7
Wavelength of infrared
10^-7 to 10^-3
Wavelength of microwaves
10^-4 to 10^-1
Wavelength of radio
10^-3 to 10^5
Properties of gamma rays
Destroying tumours
Properties of x rays
See bones
Properties of ultraviolet
Checking banknotes
properties of Visible light
Photosynthesis and to see
Properties of infrared
Night vision
Properties of microwaves
Mobile phones and satellite communications
Properties of radio
Many signals can be transmitted
Equation of intensity power and area
I= P/A