,%20change%20velocity%20(refraction)%20be%20absorbed%20or%20can%20pass%20straight%20through%20-%20depending%20on%20if%20the%20material%20is%20transparent,%20translucent%20or%20opaque.%20Thanks%20for%20watching,%20Lewis%20_%20MY%20PHYSICS%20WEBSITES%20Find%20even%20more%20videos%20organised%20by%20exam%20board%20and%20topic%20at:%20GCSE%20Physics%20Online%20►%20https://www.gcsephysicsonline.com%20A%20Level%20Physics%20Online%20►%20https://www.alevelphysicsonline.com%20MY%20YOUTUBE%20CHANNEL%20Your%20support%20in%20watching%20this%20video%20has%20been%20invaluable!%20To%20contribute%20towards%20the%20free%20videos%20on%20YouTube,%20make%20a%20small%20donation%20at:%20►%20https://www.paypal.me/physicsonline%20FOLLOW%20ME%20►%20https://www.youtube.com/physicsonline?sub_confirmation=1)
When waves pass from one medium to another, or they meet a boundary, they can bounce back (reflection), change velocity (refraction) be absorbed or can pass straight through - depending on if the material is transparent, translucent or opaque.
Thanks for watching,
Lewis
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