Lesson 4

Question 1

What is it called when two periodic waves with the same amplitude and wavelength travel in opposite directions, the resulting interference pattern is particularly interesting

Answer 1

Interference

Question 2

When these vibrate up and down the wave appears to stand still it is known as

Answer 2

Standing waves

Question 3

Points that remain perfectly still on a standing wave are called

Answer 3

Node (no movement) they occur every half wavelength

Question 4

Midway between two nodes is a point that experiences the maximum displacement from the rest position this point is called

Answer 4

Antinode (occur every halfway between every pair of nodes)