6.3 Wave propertiesApril 13, 2023

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Aims

• Use real and/or computer animations of water waves to show reflection, refraction, diffraction and interference

• Explain these effects

Useful websites

• http://www.acoustics.salford.ac.uk/feschools/waves/waves.htm

• http://en.wikipedia.org/wiki/Wave• http://

resonanceswavesandfields.blogspot.com/2007/08/true-waves.html

• http://www.scienceaid.co.uk/physics/waves/properties.html

• http://www.falstad.com/ripple/

Reflection

Refraction

Loses grip, skids

Other wheelsstill moving

Turns to the right

Both wheels now have same grip,continues in a straight line

Diffraction

Interference

Refle

ction

Refr

actio

n

Diff

racti

on

Inte

rfer

ence

Refle

ction

Refr

actio

n

Diff

racti

on

Inte

rfer

ence

Refraction is the change in direction of a wave due to a change in its speed.

Reflection is the change in direction of a wavefront at an interface

Diffraction is the apparent bending of waves around small obstacles and the spreading out of waves past small openings.

Interference is the addition of two or morewaves that results in a new wave pattern.

Questions

• Answer the questions for P6 C Wave Properties

Homework

• Complete the appropriate page in the homework booklet