chapter 11 - waves

Question 1

transverse wave

Answer 1

has a direction of vibration that is perpendicular to the direction of wave travel

Question 1

wave

Answer 1

disturbance that propagates through space, transfeerring energy but not matter

Question 2

longitudinal wave

Answer 2

has a direction of vibration that is parallel to the direction of wave travel

Question 3

displacement (on any point of a wave)

Answer 3

vector pointing to a point on the graph from its rest position to the point

Question 4

amplitude of a wave

Answer 4

maximum magnitude of displacement from its rest position

Question 5

crest

Answer 5

highest point of a transverse wave

Question 6

troughs

Answer 6

lowest points of a transverse wave

Question 7

in phase

Answer 7

two points of a wave that have the same direction of motion, same speed and the same displacement

Question 8

wavelength (λ)

Answer 8

shortest distance between two successive crests, troughs or any two points in phase

Question 9

period

Answer 9

time taken by each point on the wave to complete one oscillation

Question 10

frequency

Answer 10

number of oscillations each point completes per second

Question 11

wave speed

Answer 11

distance travelled by the wave per second

Question 12

wave front

Answer 12

imaginary line joining all adjacent points that are in phase

Question 13

describe change in waves from deep to shallow water

Answer 13

from deep to shallow, water waves bends towards normal, speed decrease, wavelength decrease, frequency constant