Wave behaviour at boundaries

Question 1

Absorption

Answer 1

When waves meet some materials, the energy is absorbed by the material.

Question 2

Transmission

Answer 2

Waves carry on travelling through a new material.

This often leads to refraction

Question 3

relfection

Answer 3

Reflection happens when a wave hits a flat surface (plane) and bounces off.

Question 4

refraction

Answer 4

wave is reflected back-it is not absorbed or transmitted, sent back away from second material, this is how echoes are created.

Question 5

wave hit boundary at angle

Answer 5

change of speed cause change in direction-refraction

Question 6

wave is travelling along normal

Answer 6

change speed, not refracted.

GREATER CHANGE IN SPEED,MORE WAVE BENDS.

Question 7

Electromagnetic

Answer 7

like light usually travel slow in dense material

Question 8

EM wave refraction

Answer 8

can be affected by wavelength. short wavelength bend more, can lead to wavelength spreading out

Question 9

frequency of wave when crossing boundary

Answer 9

it stays the same.

Question 10

dense and less dense materials

Answer 10

when light enters more dense, refracted near normal

when light enters less denser, refracted away normal

Question 11

angles

Answer 11

higher density, higher the angle