Chapter 15 and 16

Question 1

Amplitude

Answer 1

maximum displacement from eq., distance from midpoint to the crest

Question 2

units of A

Answer 2

m

Question 3

period

Answer 3

time required to repeat motion, affected by length

Question 4

period formula

Answer 4

T=1/f

Question 5

units of period

Answer 5

seconds

Question 6

phase angle

Answer 6

shift of wave to get another wave

Question 7

units of phase angle

Answer 7

radians

Question 8

crests

Answer 8

high point

Question 9

troughs

Answer 9

low points

Question 10

vibration

Answer 10

a periodic wiggle in time

Question 11

wave

Answer 11

a peridodic wiggle in both tme a space

Question 12

mechanical wave

Answer 12

the propagation of vibrations through a material

Question 13

electromagnetic wave

Answer 13

vibrations of electric and magnetic field

Question 14

sine curve

Answer 14

a pictorial representation of a wave produced by simple harmonic motion

Question 15

wavelength

Answer 15

distance b/w any identical parts of the wave

Question 16

frequecny

Answer 16

how frequently a vibration occurs

Question 17

units of frequency

Answer 17

Hz, s-1

Question 18

frequency formula

Answer 18

1/T

Question 19

transverse waves

Answer 19

motion of medium is transverse to the direction the wave travels

Question 20

longitudinal wave

Answer 20

motion along the direction

Question 21

node

Answer 21

poistion of minimum amplitude

Question 22

out of step

Answer 22

out of phase

Question 23

period of mass and spring units

Answer 23

seconds

Question 24

as mass increases

Answer 24

period increases

Question 25

wave speed

Answer 25

wavelength/period or wavelenght *frequency, speed of wave in forward direction

Question 26

wave interference

Answer 26

when waves meet

Question 27

interference pattern

Answer 27

overlapping waves

Question 28

standing waves

Answer 28

waves that appear to be still

Question 29

doppler effect

Answer 29

change in f due to motion of source

Question 30

observer moving toward source

Answer 30

+

Question 31

observer moving away from source

Answer 31

-

Question 32

source moving toward observer

Answer 32

-

Question 33

source moving away from observer

Answer 33

+

Question 34

linear density

Answer 34

how much mass per length makes up a substance

Question 35

wave speed units

Answer 35

m/s

Question 36

where do waves carry energy

Answer 36

the direction they are traveling

Question 37

average wave speed

Answer 37

4Af, any point in wave

Question 38

electromagnetic waves do not need a

Answer 38

medium

Question 39

speed of pulse is affected by

Answer 39

tension newtons 3rd law

Question 40

as tension increases

Answer 40

speed increases

Question 41

as mass increases

Answer 41

velocity decreases

Question 42

deep water waves

Answer 42

if the depth of water is greater wavelength

Question 43

what is a key ingriedent to period

Answer 43

length

Question 44

if length increases

Answer 44

period increases

Question 45

if gravity increases, period

Answer 45

decreases

Question 46

one wavelenght

Answer 46

is one period

Question 47

what is affected by the doppler effect

Answer 47

any wave