15. As you go from left to right across the electromagnetic spectrum what happens to the frequency and energy of the waves? ________________________________________________________________________
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16. What happens to the speed of light as it enters a different medium? ______________________________
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17. Which color of the visible light portion of the electromagnetic spectrum has the highest frequency and the most energy? ___________________________________________________________________________
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18. Which color of the visible light portion of the electromagnetic spectrum has the lowest frequency and the least energy? ______________________________________________________________________________

19. Write the order of the following types of waves from lowest to highest frequency: visible light, gamma rays, x-rays, infrared waves, ultraviolet rays, microwaves, and radio waves. __________________________________________________________________________________________
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20. Write the order of the following types of waves from shortest to longest wavelength: visible light, gamma rays, x-rays, infrared waves, ultraviolet rays, microwaves, and radio waves. __________________________________________________________________________________________
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