Wave Properties

Question 1

What are the 3 ways in which a waves direction of travel can be changed?

Answer 1

Reflection
Refraction
Diffraction

Question 2

What does reflection of light let us do?

Answer 2

Let’s us see things

Question 3

Angle of incidence =

Answer 3

Angle of reflection

Question 4

What is refraction?

Answer 4

Going though a new material but change direction

Question 5

What is diffraction?

Answer 5

When waves spread out

Question 6

In diffraction when the gap which waves pass though is much wider than the wavelength what happens?

Answer 6

There is only little diffraction

Question 7

In diffraction when the gap which the waves go though is only a bit wider than the wavelength what happens?

Answer 7

There is only diffraction at the edges

Question 8

In diffraction when the gap which the waves pass though is the same size as the wavelength what happens?

Answer 8

There is maximum diffraction

Question 9

What happens in refraction when a wave crosses a boundary between two substances (e.g air to water)

Answer 9

It changes direction

Question 10

If light hits the boundary face on what happens to the direction of the wave?

Answer 10

It carries on in the same direction

Question 11

What happens if a wave meets at a different medium (e.g air to glass) at an angle?

Answer 11

The waves change direction

Question 12

When a wave hits at an angle what has happened?

Answer 12

Refraction has taken place