Intro to waves

Question 1

a disturbance that carries energy as it travels from one point in space to another

Answer 1

wave

Question 2

waves that require a medium

Answer 2

mechanical waves

Question 3

waves that do not require a medium

Answer 3

electromagnetic waves

Question 4

waves in which the disturbance is perpendicular to the direction of the travel

Answer 4

transverse waves

Question 5

waves in which the disturbance is parallel to the direction of the travel

Answer 5

longitudinal waves

Question 6

examples of mechanical transverse waves (vs, ss)

Answer 6

vibrating string, slinky flicked sideways

Question 7

example of longitudinal waves (sw, pps)

Answer 7

sound waves, pushing and pulling slinky

Question 8

electromagnetic transverse waves (rw, mw, i, vl, uv, xr, gr)

Answer 8

radiowaves, microwaves, infrared, visible light, ultraviolet, x-rays, gamma rays

Question 9

waves that are both transverse and longitudinal, and travel in circular paths

Answer 9

surface waves

Question 10

highest point of a wave

Answer 10

crest

Question 11

lowest point of a wave

Answer 11

trough

Question 12

the distance from the crest/trough from the equilibrium

Answer 12

amplitude

Question 13

the time it takes to complete one cycle of a wave

Answer 13

period

Question 14

the number of crests that have passed given a point per unit time

Answer 14

frequency

Question 15

how is frequency measured?

Answer 15

in hertz (Hz) or s^-1

Question 16

how to find the frequency of a wave, given: period (T)

Answer 16

f = 1/T

Question 17

how to find the period of a wave, given: frequency (f)

Answer 17

T = 1/f