2. J E O P A R D Y !

3. EM go home More or less You need Lenses?! What am I Help Prof. Messer Can you HEAR me?! Col VII Col VIII 100 200 300 400 500

4. State two properties of Mr. EM Waves 1x1001x100 1x1001x100

5. 1x2001x200 1x2001x200 State Mr. EM’s spectrum regions from longest to shortest wavelength

6. 1x3001x300 1x3001x300 Why are some of my regions dangerous and some are not

7. 1x4001x400 1x4001x400 How do microwave cookers work

8. 1x5001x500 1x5001x500 Source of Mr. EM’s gamma rays

9. 2x1002x100 2x1002x100 Longer wavelength ______ frquency

10. 2x2002x200 2x2002x200 Ultraviolet rays have _____ energy than Infrared

11. 2x3002x300 2x3002x300 Visible light has _______ energy than Microwaves

12. 2x4002x400 2x4002x400 Blue has ______ energy than green

13. 2x5002x500 2x5002x500 Focal length of a strong lens compared to a weak lens

14. 3x1003x100 3x1003x100 Concave lens are _______ lenses

15. 3x2003x200 3x2003x200 Concave lens always form a _______ image

16. 3x3003x300 3x3003x300 Using a convex lens, an object is placed between F and 2F, what happens to the size of the image.

17. 3x4003x400 3x4003x400 Where would you place an object in a converging lens if you want to form a virtual image?

18. 3x5003x500 3x5003x500 Parallel rays of light go through a concave lens, how will the emerging rays be directed?

19. 4x1004x100 4x1004x100 I have an electrical and magnetic field 90 degrees from each other

20. 4x2004x200 4x2004x200 You get me when you mix red and green light

21. 4x3004x300 4x3004x300 I’m an example of a longitudinal wave

22. 4x4004x400 4x4004x400 Combine me with blue, and you get Cyan

23. 4x5004x500 4x5004x500 I am the number of waves per unit time

24. 5x1005x100 5x1005x100 The Prof. is gazing at the sun at suddenly he screams he’s blind... Why did this happen?

25. 5x2005x200 5x2005x200 The professor wants to murder his wife, so as an anniversary gift he buys her blue shades. The next day she ran a red light and was killed. Explain.

26. 5x3005x300 5x3005x300 Prof. Messer can’t see from far (short-sighted). What type of lens should he get for his new glasses?

27. 5x4005x400 5x4005x400 The prof. received a letter: “Dear Prof., why do we see a rainbow after it has rained?”. The prof. answered back saying: “Its the leprechaun's chance to escape and my time to go find the gold!”. Explain the real answer to the professor.

28. 5x5005x500 5x5005x500 The prof. has found a whistle on the ground. He stated whistling but did not hear a sound. After whistling for 2 minutes he found all the puppies of his neighbourhood in his garden. Explain what’s going on.

29. 6x1006x100 6x1006x100 Sound is what type of wave?

30. 6x2006x200 6x2006x200 Sound waves are made out of two parts, what are they?

31. 6x3006x300 6x3006x300 State the relationship between frequency, speed, and wavelength

32. 6x4006x400 6x4006x400 Give two uses of Ultrasound

33. 6x5006x500 6x5006x500 A ship sends out a sound wave and receives an echo after 1.2 seconds. If the speed of sound in water is 1500 m/s, how deep is the water?