Waves and Refraction

Question 1

types of oscillations

Answer 1

mechanical or electromagnetic

Question 2

two main different classes of waves

Answer 2

transverse and longitudinal

Question 3

define transverse wave

Answer 3

wave that oscillates perpendicular to direction of propagation

Question 4

example of transverse wave

Answer 4

light

Question 5

define longitudinal waves

Answer 5

a wave that oscillates on the same axis along which the wave travels

Question 6

example of longitudinal waves

Answer 6

sound

Question 7

define wavelength

Answer 7

the smallest distance between points of the wave that are in phase

Question 8

define frequency v

Answer 8

the number of waves passing a point in a second

Question 9

equation for frequency

Answer 9

v = wavespeed/lamda (wavelength)

Question 10

define period of a wave T

Answer 10

the time needed for a wave to pass a point

Question 11

equation for period of a wave

Answer 11

T = 1/v

Question 12

define amplitude A

Answer 12

the maximum intensity value of wave, distance between crest and zero

Question 13

define phase circle with line

Answer 13

the particular stage in the periodic process or phenomem[non

Question 14

what is phase usually measured in

Answer 14

radians

Question 15

general wave equation

Answer 15

y = Asin(v * x + phi)

Question 16

three things that can happen to a wave at a boundary

Answer 16

reflected, absorbed or transmitted

Question 17

law of reflection

Answer 17

the incident and reflected rays make equal angles to a normal to the surface at the reflection point

Question 18

define refraction

Answer 18

the process of deflection of a wave when it travels from a medium to another

Question 19

if there is higher optical density which way would the wave refract

Answer 19

closer to the normal

Question 20

equation for the refractive index vacuum to material

Answer 20

n = sintheta1/sintheta2

Question 21

equation for refractive index between two materials

Answer 21

n1 * sintheta1 = n2 * sintheta2