chapter 22 vocabulary

Question 1

medium

Answer 1

physical environment in which phenomena occur

Question 2

tranverse wave

Answer 2

a wave in which the particles of the medium move perpendicularly to the direction the wave is traveling

Question 3

longitudinal wave

Answer 3

a wave in which the particles of the medium vibrate parallel to the direction of wave motion

Question 4

amplitude

Answer 4

the maximum distance that the particles of a wave’s medium vibrate from their rest position

Question 5

wavelength

Answer 5

the distance from any point on a wave to an identical point on the next wave.

Question 6

frequency

Answer 6

the number of waves produced in a given amount of time

Question 7

wave speed

Answer 7

the speed at which a wave travels through a medium

Question 8

crest

Answer 8

the highest point of a transverse wave

Question 9

trough

Answer 9

the lowest point between each crest

Question 10

compression

Answer 10

-a part of a longitudinal wave where the particles are crowded together

Question 11

rarefaction

Answer 11

a part where the particles are spread apart

Question 12

refraction

Answer 12

the bending of a wave as the wave passes between two substances in which the speed of the wave differs.

Question 13

diffraction

Answer 13

a change in the direction of a wave when the wave finds an obstacle or an edge, such as an opening

Question 14

interference

Answer 14

the combination of two or more waves that results in a single wave.

Question 15

reflection

Answer 15

the bouncing back of a wave of light, sound, or heat when the wave hits a surface that it doesn’t go through

Question 16

wave

Answer 16

a periodic disturbance in a solid, liquid, or gas as energy is transmitted through a medium