Standing Waves and Interference

Question 1

Standing Wave

Answer 1

A vibrational pattern created in a medium when the frequency of the source causes reflected waves from one end of the medium to interfere with incident waves from the source, causing specific points along the medium appear to be standing still

Question 2

Node

Answer 2

Where 2 waves cancel out, meaning there’s no movement

Question 3

Antinode

Answer 3

Where 2 waves interfere constructively, doubling the wave height

Question 4

Wave front

Answer 4

Leading edge of a complete wave

Question 5

Coherent Wave

Answer 5

Has a constant phase difference, with the same frequency and wavelength

Question 6

Path Difference

Answer 6

Difference in distance traveled by 2 waves from their sources to a given point

Question 7

Superposition

Answer 7

Add 2 wave displacements from equilibrium= resultant

Question 8

Interference

Answer 8

2 waves superposing to form a resultant wave

Question 9

What’s constructive interference?

Answer 9

Waves superposing because their path difference is either 0 or a whole number of wavelengths

Question 10

What’s destructive interference?

Answer 10

Waves cancelling eachother out because they are out of phase

Question 11

In Phase and Out of Phase

Answer 11

In Phase- peak meets peak

Out of Phase- peak meets trough