Waves Flashcards
What are two types of waves?
Transverse, Longitudinal
What examples of Longitudinal waves?
Extending a spring, Pressure waves
What are examples of Transverse waves
Water and Mexican waves
How do Longitudinal waves work?
Causes the medium’s waves particles to vibrate in the same direction as the wave’s motion
How do Transverse waves work?
Causes the medium’s waves particles to vibrate at right angles to the direction of the wave’s motion
What is frequency?
The number of vibrations per second
What is the equation for frequency?
1/ Time period (Measured in Hertz)
What is amplitude?
The largest distance that a point on a wave moves from its rest position
What is the equation for wave speed
Wave speed m/s = Frequency x wavelength
What is the equation for refractive index
n (refractive index) = sin(i)/sin(r)
What is the equation for critical angle?
Sin(c) = 1/n