Midterm 3

Question 1

What are traveling waves

Answer 1

-Consider a wave on a string
-When a wave pulse travels down the string
-Sound wave bounces off and comes back

Question 2

What are standing waves

Answer 2

When both ends are secured…(like a guitar)
Waves keep reflecting off ends and you get
standing waves

Question 3

When two traveling waves approach collide,
there is

Answer 3

superposition and interference

Question 4

What is superposition

Answer 4

the combination of two waves at the same location

Question 5

Two types of interference:

Answer 5

constructive and destructive

Question 6

What is constructive interference

Answer 6

when 2 pulses interfere in a manner that makes the pulse larger

Question 7

What is destructive interference

Answer 7

if 2 pulses are 180 degrees out of phase with each other, and interfere, and they destroy each other resulting in a line

if its not 180 degrees, there will be a shallow line

Question 8

What conditions must be satisfied to get standing waves

Answer 8

-When both ends are secured…(like a guitar)
-Waves keep reflecting off ends and you get standing waves

Question 9

What are antinodes

Answer 9

-Maximum constructive interference
-point of superposition