Chapter 4 - Waves Flashcards
What is frequency?
Number of waves a second
What is wavelength?
Distance from peak to peak, troth to troth, or any other identical place from one wave to the next
What is amplitude?
How far particles move from equilibrium
What is wave velocity?
Speed of waves
What is the equation for wave velocity using frequency and wavelength?
Wave velocity=frequency x wavelength
What is another equation for wave velocity using distance and time?
Wave velocity =distance /time
What is the equation for wave length?
Wave length=wave velocity / frequency
What direction do transverse waves travel?
Perpendicular, at right angle to, the direction of energy transfer
Give an example of a transverse wave
Light waves
What are the 2 types of reflection?
Specular and diffuse
What is the surface of an object like when speculation reflection takes place? What about when diffuse reflection takes place?
Specialty reflection takes place when the object is smooth, even under microscopic vision. Diffuse reflection takes place on a rough surface meaning your cannot see yourself in it
What is the refraction index?
The ratio of velocity of light in a vacuum to its velocity in a specified medium
What are the 2 main parts of longitudinal waves called? Describe each
Compression, where there are more particles
Rarefaction, where there are less particles
What could the movement of a slinky show?
The movement of longitudinal waves, with compressions and rarefactions
