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Unit 5 Lesson 3 Quiz 1. B A is incorrect because the statement is true. Electromagnetic waves do travel at the speed of light. B is correct because the statement is false. Electromagnetic waves do not need a medium to travel through. C is incorrect because the statement is true. Different wavelengths of light are interpreted by our eyes as different colors. D is incorrect because the statement is true. The transfer of energy as electromagnetic waves is called electromagnetic radiation. 2. A A is correct because the statement is false. Black light, not white light, is the absence of color. B is incorrect because the statement is true. Higher-frequency electromagnetic waves have more energy. C is incorrect because the statement is true. The sun radiates several different types of electromagnetic energy. D is incorrect because the statement is true. The frequency of an electromagnetic wave is related to its wavelength. 3. B A is incorrect because gamma rays, not radio waves, have the shortest wavelength (highest frequency). B is correct because gamma rays have the shortest wavelength (highest frequency). C is incorrect because gamma rays, not infrared waves, have the shortest wavelength (highest frequency). D is incorrect because gamma rays, not ultraviolet waves, have the shortest wavelength (highest frequency). 4. B A is incorrect because all electromagnetic waves travel at the same speed, which is the speed of light. B is correct because the higher the frequency, the higher the energy. If delta rays have a higher frequency than gamma rays have, then delta rays would have more energy. C is incorrect because if delta rays have a higher frequency than gamma rays have, then delta waves would have a shorter wavelength. D is incorrect because if delta rays have a higher frequency than gamma rays have, then delta waves would have a shorter, not longer, wavelength. 5. D A is incorrect because visible light waves, not microwaves, have the highest frequency and thus the most energy. B is incorrect because visible light waves, not radio waves, have the highest frequency and thus the most energy. C is incorrect because visible light waves, not infrared waves, have the highest frequency and thus the most energy. D is correct because visible light waves have the highest frequency and thus the most energy.