300 000 kilometres per second - The speed of light, reflection - Bouncing back; wave strikes a surface and changes direction in the same medium, electromagnetic spectrum - Range of waves including UV, light & radio waves, normal - Imaginary line perpendicular (90 degrees) to a surface, medium - Substance that a wave travels through e.g. air, water, incident ray - Direction a wave travels towards a boundary, reflected ray - Direction a wave travels after it has been bounced off a surface, angle of incidence - Angle between the incidence ray and the normal, angle of reflection - Angle between the reflected and the normal, Law of Reflection - Angle of incidence = angle of reflection,

Light & reflection

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