Refraction Ray Diagrams (OCR GCSE Physics A, Combined (Gateway Science Suite)): Flashcards
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When waves slow down, which direction do they bend?
When waves slow down, which direction do they bend?
Towards the normal
When waves speed up, which direction do they bend?
When waves speed up, which direction do they bend?
Away from the normal
What happens to waves entering along the normal?
What happens to waves entering along the normal?
Do not change direction
What is a wavefront?
What is a wavefront?
Imaginary line connecting same points in set of waves
Angle of incidence ()
Angle of incidence ()
Angle between incident wave and normal
Angle of refraction ()
Angle of refraction ()
Angle between refracted wave and normal
Which direction when entering denser material?
Which direction when entering denser material?
Bends towards the normal
Which direction when entering less dense material?
Which direction when entering less dense material?
Bends away from the normal
What causes refraction?
What causes refraction?
Waves change speed when moving between media
What happens to wavelength when waves slow down?
What happens to wavelength when waves slow down?
Gets smaller/wavefronts closer together
Shorter vs longer wavelengths in denser medium
Shorter vs longer wavelengths in denser medium
Shorter wavelengths slow down more
Blue light vs red light in denser medium
Blue light vs red light in denser medium
Blue light slows down more
What is dispersion?
What is dispersion?
White light splits into rainbow as wavelengths refract differently
Speed & wavelength in denser material
Speed & wavelength in denser material
Both decrease
Waves from deep to shallow water
Waves from deep to shallow water
Slow down and bend towards normal