2. Optics Jeopardy Light SourcesProperties of Light and Material EMS ( Electromagnetic Spectrum) R & R (Reflection and Refraction) 10 30 40 50 20 10 40 50 30 40 50 30 40 50 20 Final Jeopardy

3. Light Sources 10 Points Question This term is used to describe objects that give off, or emit their own light.

4. Light Sources 10 Points Answer What is luminous?

5. Light Sources 20 Points Question The term used to describe a light source, such as many of the light bulbs we use in our homes, that emits light when something gets really hot.

6. Light Sources 20 Points Answer What is incandescent?

7. Light Sources 30 Points Question This is what creates light in sources that are chemiluminescent, such as glow sticks.

8. Light Sources 30 Points Answer What are chemical reactions?

9. Light Sources 40 Points Question These two types of light sources are sometimes mistaken for one another. One emits light only while receiving ultraviolet energy from another source, while the other will continue to emit light for some time after absorbing light energy from another source.

10. Light Sources 40 Points Answer What are fluorescence and phosphorescence?

11. Light Sources 50 Points Question This type of light source can be seen with neon signs, lightning, and static electricity, especially if you turn out the lights.

12. Light Sources 50 Points Answer What is electric discharge?

13. Properties of Light and Materials 10 Points Question These are the 3 things that can happen to light when it encounters an encounters an object.

14. Properties of Light and Materials 10 Points Answer What are reflected, absorbed, and transmitted?

15. Properties of Light and Materials 20 Points Question This property of materials describes the amount of light that passes through a material.

16. Properties of Light and Materials 20 Points Answer What is transparency?

17. Properties of Light and Materials 30 Points Question When light energy is absorbed by an object it is transformed into this.

18. Properties of Light and Materials 30 Points Answer What is thermal energy or heat?

19. Properties of Light and Materials 40 Points Question This term is used to describe energy forms such as light because they travel out from a central point in all directions until they are blocked by objects in their paths.

20. Properties of Light and Materials 40 Points Answer What is radiation or radiant energy?

21. Properties of Light and Materials 50 Points Question This property of light is referred to by scientists as “rectilinear propagation”.

22. Properties of Light and Materials 50 Points Answer What is light travels in straight lines?

23. EMS (Electromagnetic Spectrum) 10 Points Question All energy forms along the electromagnetic spectrum travel at this speed (in a vacuum, anyway).

24. EMS (Electromagnetic Spectrum) 10 Points Answer What is the speed of light or 300 000km/sec (186 000m/sec)?

25. EMS (Electromagnetic Spectrum) 20 Points Question This happens to wavelength as you move from left to right along the electromagnetic spectrum.

26. EMS (Electromagnetic Spectrum) 20 Points Answer What is wavelength gets shorter?

27. Daily Double

28. EMS (Electromagnetic Spectrum) 30 Points Question This is the correct order, from right to left, of energy forms found along the EM spectrum. Daily Double

29. EMS (Electromagnetic Spectrum) 30 Points Answer What is gamma rays, X-rays, UV radiation, visible light, infrared radiation, microwaves, and radar waves ?

30. EMS (Electromagnetic Spectrum) 40 Points Question This form of electromagnetic energy has the highest frequency, the greatest energy, and therefore is most dangerous to be exposed to.

31. EMS (Electromagnetic Spectrum) 40 Points Answer What are gamma rays?

32. EMS (Electromagnetic Spectrum) 50 Points Question These types of electromagnetic energy are invisible to humans.

33. EMS (Electromagnetic Spectrum) 50 Points Answer What are all except the wavelengths (colors) found within the visible spectrum?

34. R & R (Reflection and Refraction) 10 Points Question This is better known as the 1 st Law of Reflection.

35. R & R (Reflection and Refraction) 10 Points Answer What is the angle of incidence is equal to the angle of reflection when light hits a plane surface?

36. Daily Double

37. R & R (Reflection and Refraction) 20 Points Question Using this type of mirror will allow you to see things from a wider area, although not in as much detail (“Warning: Objects in your mirror are closer than they appear!” Daily Double

38. R & R (Reflection and Refraction) 20 Points Answer What is a convex mirror?

39. R & R (Reflection and Refraction) 30 Points Question Light will bend, or refract, when it travels from one medium into another, both having different values for this property (providing that it does not enter the new medium at right angles).

40. R & R (Reflection and Refraction) 30 Points Answer What is density?

41. R & R (Reflection and Refraction) 40 Points Question This technology that uses the principle of refraction, allows the human eye to see things clearly and to even see things that were once invisible to us.

42. R & R (Reflection and Refraction) 40 Points Answer What are lenses?

43. R & R (Reflection and Refraction) 50 Points Question Light will bend when it travels from one medium into another because this happens to it.

44. R & R (Reflection and Refraction) 50 Points Answer What is it changes speed? (It slows down if it passes into a relatively more dense material and speeds up if it passes into a relatively less dense material)

45. Final Jeopardy Answer Which picture below represents what happens to light when it travels from air through a glass window and back into air?

46. Final Jeopardy Question What is picture “d”

48. Credits Thanks to the folks at the Game Show Sounds Website for the Jeopardy theme song: http://members.fortunecity.com/jd83/gssounds.html