4.4 stationary waves

Question 1

stationary wave

Answer 1

a wave formed when the energy is stored, rather than transferred from place to place

Question 2

formation of stationary waves

Answer 2

formed when 2 progressive waves of the same frequency travel in opposite directions and combine

Question 3

nodes

Answer 3

points on stationary waves where there is no displacement of particles at any time

separation of particles is at λ/2

Question 4

antinodes

Answer 4

points on stationary waves where the displacement of particles varies by the maximum amount λ/2

Question 5

fundamental mode of vibration

Answer 5

when a guitar is plucked, the simplest stationary wave that can be set up is where the length of the string is half the wavelength of the note

Question 6

harmonics

Answer 6

multiples of the fundamental frequency; which is the frequency of the fundamental mode of vibration in strings

(total amount of wave visible =1/2 on top and 1/2 on bottom)