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20 Cards in this Set
- Front
- Back
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Shadows
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Created when light is blocked by an object.
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Reflection
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Occurs when a light ray bounces off a surface.
Two types: Regular and Diffuse. |
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Regular Reflection
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Occurs on smooth surfaces eg. mirror.
Forms a clear image |
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Diffuse
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Occurs on rough surfaces
No clear image is formed |
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Law of reflection
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Angle of incoming ray = Angle of reflected ray
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Lateral Inversion
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The left to right flip that occur to the reflected image in a mirror.
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Concave Mirror
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A mirror which is curved in wards like a cave.
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Focus
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The point where reflected rays from a concave mirror meet.
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Refraction
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The bending of light when passing from one substance to another.
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HLA
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High refractive index to Low refractive index = away from the normal
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LHT
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Low refractive index to High refractive index = towards the normal
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Three primary colour
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Red, Green and Blue
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Wave length
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The distance between the peak of two waves
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Electromagnetic Spectrum
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Spectrum based on the wave length of radiation.
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Spectrum of colour
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Infa-Red...... Red, Orange, Yellow, Green, Blue, Indigo, Violet...... Ultra Violet
The colours make up white light |
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Speed of Sound
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330m/s at 0oC the speed changes when sound is travelling through different substances.
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Speed of Light
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3 million m/s
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Luminous
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When something produces its own light
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Non-Luminous
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Something doesn't produce it's own light
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Disperse
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When light is spilt by a prism into a spectrum.
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