Light Waves

Question 1

What does Ionization mean?

Answer 1

The process where atoms/molecules accquire a positive/negative charge by gaining or losing electron(s).

Question 2

What happens when something Emits?

Answer 2

When something emits it gives off or discharges, (Eg: elements releasing different photons of colour as their atoms return to their lower energy levels)

Question 3

What happens when something Absorbs? (Wave)

Answer 3

The energy of a wave is transferred to the matter that it passes through.

Question 4

What happens when something Reflects?

Answer 4

The waves encounter a surface that doesn’t absorb the energy of the radiation, thus bouncing the waves away from the surface.

Question 5

Define Refraction

Answer 5

Refraction is the bending of light (or any wave) when it travels from one material to another.

Question 6

What are the 2 properties that angle of reflection have compared to incidence?

Answer 6

Increases when Incidence increases. (Directly proportional)

Angle of reflection is equal to incidence.
(The angle of refraction can change depending on the density of the material. eg: glass, plastic, and water.)

Question 7

Properties of Electromagnetic Waves:

Answer 7

Travel at the speed of light,
Are transverse waves,
Transfer energy,
Can be reflected/refracted.