exam 5,6,7

Question 1

longitudinal is…?

Answer 1

parallel, compressional, and p-waves

Question 2

transverse waves are…?

Answer 2

perdpendicular, s-waves, shear

Question 3

speed of the wave

Answer 3

v= λf

Question 4

wavenumber

Answer 4

k=2pie/ λ

Question 5

transverse wave time graph
<—Period, T —->

Answer 5

time (seconds)

Question 6

Transverse wave space graph
<—- Wavelength—–>

Answer 6

distance (meters)

Question 7

y(x,t) = A sin (2π x/λ - 2πf t + φ)
A

Answer 7

amplitude m

Question 8

y(x,t) = A sin (2π x/λ - 2πf t + φ)
λ

Answer 8

λ is wavelength m

Question 9

y(x,t) = A sin (2π x/λ - 2πf t + φ)
f

Answer 9

f is frequency hz

Question 10

y(x,t) = A sin (2π x/λ - 2πf t + φ)
φ

Answer 10

φ is phase, radians

Question 11

refraction

Answer 11

bending toward normal when wave slows

Question 12

seen in optical prism

Answer 12

dispersion

Question 13

in phase/ no phase difference

Answer 13

constructive interference

Question 14

out of phase

Answer 14

deconstructive

Question 15

the difference between the two; the resulting
pulses in loudness are called

Answer 15

beats

Question 16

can form when a wave reflects and interferes with itself; key observation is that the wave doesn’t appear to “travel,” but, instead, appears to travel up and down at certain locations.

Answer 16

standing wave

Question 17

These waves have the same wavelength, but they are out-of-phase due to
an offset in how they started; this is may be referred to as a

Answer 17

phase difference

Question 18

index of refraction

Answer 18

The ratio of the speed of light in a material to the speed in a vacuum

Question 19

snells law

Answer 19

The relationship between the index of refraction and the change in the direction angle of the a ray as it goes across a medium is given by