1. 5.14 The Visible Spectrum Red Orange Yellow Green Blue violet Triangular prisim White light

2. 1. Statement A is correct because, as Newton discovered, white light is composed of spectral colours 1. Statement A is correct because, as Newton discovered, white light is composed of spectral colours

3. 2. “Recombining the visible spectrum” means that the colours of the rainbow – red, orange, yellow, green, blue, and violet– are brought together in a prisim and result in white light. 2. “Recombining the visible spectrum” means that the colours of the rainbow – red, orange, yellow, green, blue, and violet– are brought together in a prisim and result in white light.

4. 3. Violet changes direction the most: red changes the least 3. Violet changes direction the most: red changes the least 4. The red light would refract at each edge, but it would not split up into any other colours because it is a single colour 4. The red light would refract at each edge, but it would not split up into any other colours because it is a single colour

5. The visible spectrum can be seen in the sky (a rainbow), in the mist of waterfalls, water from a garden house, coming from a prism, coming from a crystal glass or diamond ring, chandelier, soap bubbles and oil slicks. The visible spectrum can be seen in the sky (a rainbow), in the mist of waterfalls, water from a garden house, coming from a prism, coming from a crystal glass or diamond ring, chandelier, soap bubbles and oil slicks.

6. 5.15 The Electromagnetic Spectrum Understanding Concepts 1. The order is: MicrowavesMicrowaves Infrared radiationInfrared radiation Orange lightOrange light Blue lightBlue light X-raysX-rays

7. Some of the electromagnetic spectrum we have all been exposed to includes: Some of the electromagnetic spectrum we have all been exposed to includes: –Radio waves, UV rays, Visible Light, microwaves, infrared radiation and maybe x- rays

8. Visible light is in the middle of the electromagnetic spectrum so it has higher frequencies and energy than radio waves, microwaves, and infrared radiation, but lower frequencies and energies than UV, X and gamma rays Visible light is in the middle of the electromagnetic spectrum so it has higher frequencies and energy than radio waves, microwaves, and infrared radiation, but lower frequencies and energies than UV, X and gamma rays

9. Optics Review

10. Definitions  Light  Luminous  Non-Luminous  Incandescence  Phosphorescence  Fluorescence  Chimiluminescence  Bioluminescence  Shadow  Umbra  Penumbra  Transparent  Translucent  Opaque

11. Definitions Continued  Plane mirror  Angle of incidence  Angle of reflection  Incident ray  Reflected Ray  Normal  Point of incidence  Visible Spectrum  Electromagnetic Spectrum  Radio Waves  Microwaves  Visible Light  Ultraviolet Radiation  x-Rays  Gamma Rays

12. Light behaves in predictable ways Ray diagrams are used to describe light Ray diagrams are used to describe light The Angle of Incidence equals the Angle of Reflection The Angle of Incidence equals the Angle of Reflection Refraction – light is bent when it passes to and from areas of different densities Refraction – light is bent when it passes to and from areas of different densities

13. Refraction  The bending of light as it travels from one medium (material) to another  Examples :  Air to glass  Air to water  Glass to Air  Water to Air

14.  When light travels from air into another medium. The light bends towards the normal because it is slowing down.  When light travels through water or glass into air, the light bends away from the normal because it is speeding up.

15. . Electromagnetic Spectrum – Wave Theory  Light has the properties of a wave  Visible light has different wavelengths and forms the colors of the rainbow  Electromagnetic spectrum also includes (invisible light) – radio waves, microwaves, infrared, ultraviolet, X-rays, gamma ray

16. Electromagnetic Spectrum con’t  Radio waves carry the least energy – gamma rays the most energy  Visible light can be produced naturally (bioluminescence, sunlight) & artificially (phosphorescence, incandescence and florescence)  White light combines red light – green light – blue light

17. Electromagnetic Spectrum  Should be able to give examples of each part of the spectrum, how they are useful, and how they can be harmful