chapter 7- general properties of waves Flashcards
1
Q
transverse waves
A
the oscillations (vibration) are perpendicular (up and down)
e.g. electromagnetic waves (light ect.)
ripples in water
a wave on a string
2
Q
longitudinal waves
A
the oscillations are parallel (forwards and back)
e.g. sound waves, shock waves
3
Q
the bigger the amplitude…
A
the more energy the waves carry
4
Q
refractions
A
change in direction of waves caused by a change in their speed when they cross a boundary between one medium and another
5
Q
diffraction
A
the spreading of waves when they pass through a gap or around the edge of an obstacle
6
Q
the narrower the gap…
A
the more diffraction
7
Q
the wider the gap…
A
the less diffraction there is
