Waves

Question 1

what are waves?

Answer 1

vibrations of particles

Question 2

what do waves transfer?

Answer 2

energy not matter

Question 3

Frequency

Answer 3

number of waves passing a point each second

Question 4

wavelength

Answer 4

shortest distance between two coherent points on the same wave e.g. peak to peak

Question 5

amplitude

Answer 5

maximum height of wave measured from middle

Question 6

longitudinal

Answer 6

vibration = same direction as energy compression & rarefraction of particles e.g. sound waves/mechanical waves (earthquakes)

Question 7

transverse

Answer 7

perpendicular to direction of energy (oscillations) peaks & troughs e.g. light waves/water waves

Question 8

waves

Question 9

what is the wave equation?

Answer 9

wave speed = frequency x wavelength

Question 10

what is the law of reflection?

Answer 10

angle of incidence = angle of reflection

Question 11

what is the law of refraction?

Answer 11

angle of incidence > angle of refraction when low density to high density