Waves in 2D

Question 1

Define Wavefront

Answer 1

A continuous crest or trough

Question 2

Define Wave Ray

Answer 2

the direction of travel or transmission of a wave. (a right angle to the wave front)

Question 3

Define Incident ray

Answer 3

Incoming wave ray

Question 4

Define Reflected wave ray

Answer 4

Outgoing wave ray

Question 5

Define Normal

Answer 5

imaginary line that is perpendicular to the barrier

Question 6

Define Angle of incidence

Answer 6

angle between the reflected ray and normal

Question 7

Define Angle of reflection

Answer 7

angle between the reflected ray and normal

Question 8

What is Refraction?

Answer 8

when a wave changes the direction in which it is moving. Caused by a change in speed moving from one medium to another

Question 9

what is Diffraction?

Answer 9

the bending of a wave as it moves around a barrier

Question 10

what is interference?

Answer 10

when two waves occupy the same space

Question 11

What is Constructive interference?

Answer 11

occurs where two troughs or crests meet

Question 12

what is deconstructive interference?

Answer 12

Occurs where a trough and crest meet

Question 13

What changes during refraction?

Answer 13

Direction and wavelength

Question 14

Diffraction: what is the difference between a wave moving through a small opening compared to a
large opening?

Answer 14

Smaller opening shows more diffraction and more circular waves, and bigger opening is the opposite

Question 15

What happens to angle of refraction when going from 1.) air to water 2.) air to glass 3.) glass to water

Answer 15

1.) Refraction < Incidence
2.) Refraction < Incidence
3.) Refraction > Incidence