Waves

Question 1

Font

Answer 1

a disturbance caused by a vibration; Waves travel away from the source that makes them.

Question 2

Crest

Answer 2

the highest point of a wave

Question 3

Trough

Answer 3

the lowest point of a wave

Question 4

Amplitude

Answer 4

height or “strength” of a wave

Question 5

Frequency

Answer 5

the number of cycles a wave completes in a period of time; the number of times something happens in a period of time

Question 6

Period

Answer 6

a division of geologic time that is a subdivision of an era and is itself subdivided into epochs

Question 7

Medium

Answer 7

A substance that makes possible the transfer of energy from one location to another, especially through waves

Question 8

Transverse wave

Answer 8

a wave that occurs when the particles of a medium are displaced perpendicularly to the direction of the wave

Question 9

Electromagnetic

Answer 9

a metal object that acts as a magnet when an electric current moves through it

Question 10

Longitudinal

Answer 10

a wave that occurs when the particles of a medium move parallel to the direction of the wave

Question 11

Compression

Answer 11

occurs when rocks are squeezed by external forces directed toward one another to put stress on the rock, acting to decrease its volume or shorten its dimensions

Question 12

Rarefaction

Answer 12

area of decreased pressure following compression as a longitudinal wave propagates

Question 13

Reflection

Answer 13

a change in the direction of a wave when it hits a barrier and bounces back

Question 14

Refraction

Answer 14

change in direction of propagation of any wave as a result of its traveling at different speeds at different points along the wave front.

Question 15

Diffraction

Answer 15

Diffraction is defined as a process by which light waves break up into dark and light bands or into the colors of the spectrum