Light_Colors_Lenses



Light/Colors/Mirrors/Lenses 1 Rainbows form because light is being refracted or bent through raindrops which act as a prism. 2 Light is either reflected, transmitted, or absorbed when it strikes an object. 3 Transparent = material that transmits most of the light that strikes it 4 Translucent = material which scatters light as it passes through 5 Opaque = material which reflects or absorbs all of the light that strikes it; the color of an opaque object is the color of light it reflects 6 Pigment = colored substances that are used to color other materials; pigments absorb some colors and reflect others 7 Reflection = waves bouncing back off a surface through which it cannot pass 8 The law of reflection states that the angle of incidence equals the angle of reflection 9 Plane mirror = a flat sheet of glass that has a smooth, silver-colored coating on one side; the coating reflects light forming a virtual image 10 Types of mirrors: Convex = surface curves outward Concave = surface curves inward 11 Refraction = the bending of light waves due to a change in speed 12 Lens = a curved piece of glass or other transparent material that refracts light 13 Convex lens = thicker in the center than at the edges; light rays converge as they pass through 14 Concave lens = thinner in the center than at the edges; light rays bend away or diverge