Visible Light Spectrum (AQA GCSE Physics): Flashcards
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Practise the cards
15 cards from this deck
What does each colour in visible light have?
What does each colour in visible light have?
Own narrow band of wavelength & frequency
Blue vs red: wavelength?
Blue vs red: wavelength?
Blue has shorter wavelength than red
Blue vs red: frequency?
Blue vs red: frequency?
Blue has higher frequency than red
What is sunlight composed of?
What is sunlight composed of?
Mix of all colours
What colour does a mix of all colours appear?
What colour does a mix of all colours appear?
White
Specular reflection?
Specular reflection?
Smooth surface gives single reflection
Diffuse reflection?
Diffuse reflection?
Rough surface causes scattering
How do colour filters work?
How do colour filters work?
Absorb all other colours
What do colour filters let through?
What do colour filters let through?
Certain wavelengths (certain colour)
What determines opaque object's colour?
What determines opaque object's colour?
Strength of reflection for different wavelengths
What happens to wavelengths not reflected?
What happens to wavelengths not reflected?
They are absorbed
When does opaque object appear white?
When does opaque object appear white?
When all wavelengths are reflected
When does opaque object appear black?
When does opaque object appear black?
When all wavelengths are absorbed
Types of objects that transmit light?
Types of objects that transmit light?
Transparent or translucent
What do translucent objects do?
What do translucent objects do?
Scatter most light, let some through