16. The change in direction of a wave as it passes from one medium to another is called:
a) Reflection
b) Refraction
c) Diffraction
d) Interference
17. The phenomenon of two waves overlapping and combining to form a new wave is called:
a) Reflection
b) Refraction
c) Diffraction
d) Interference
18. The type of interference that occurs when two waves combine to create a larger amplitude is called:
a) Constructive interference
b) Destructive interference
c) Longitudinal interference
d) Transverse interference
19. The type of interference that occurs when two waves combine to cancel each other out is called:
a) Constructive interference
b) Destructive interference
c) Longitudinal interference
d) Transverse interference
20. The Doppler effect is the change in frequency or wavelength of a wave as an observer moves relative to the source of the wave. True or False?
