January 23January 23

PhysicsPhysics

In:What one change have you noticed in 2

dimensional waves from one dimension?

ObjectiveObjective: : To continue to find out about wave To continue to find out about wave

properties in 2 dimensions.properties in 2 dimensions.

Success criteria:Success criteria:

Understand 2 dimensional:Understand 2 dimensional:

• TransmissionTransmission

• ReflectionReflection

• RefractionRefraction

• DiffractionDiffraction

• Interference Interference

Ripple Tank Lab

Part A:– Transmission and Reflection

Part B:– Refraction-from one medium to another

Part C:– Diffraction-around barriers

Part D:– Interference-constructive and destructive

Part A: Transmission and reflection

How do waves reflect off a straight barrier

How do waves reflect off a curved barrier

Straight barrier

Curved barrier

Part B: Refraction

What happens when waves move straight on from less rigid to more rigid media?

What happens when they move in at an angle?

Part C: Diffraction

How does the wavelength affect the diffraction?

How does the opening width affect the diffraction?

Part D: Interference

How does the wavelenth affect the interference pattern?

How does the spacing affect the pattern?

Wave interference

Out

How are waves in 2d the same or different than 1d:

• Transmission

• Reflection

• Refraction

• Interference