waves Flashcards
1
Q
what are the two types of waves
A
longitudinal
transverse
2
Q
what wave are the vibration at right angle to the motion
A
transverse
3
Q
what wave are the vibrations in the same direction as the motion
A
longitudinal
4
Q
what is the frequency
A
the number of waves passing one point in 1 second
5
Q
what type of wave is a sound wave
A
longitudinal
6
Q
what happens to light when its reflected
A
the angle of incidence always equals the angle of reflection
7
Q
what happens to light in refraction
A
it slows down and changes angle as it goes through a material
8
Q
what are the two types of lenses
A
convex
concave
9
Q
how many colour are on the elctromagnetic spectrum
A
7 - colours of the rainbow
10
Q
A
