1) What do you call the particles of light? a) Photons b) Waves c) Light particles d) Indivisible light 2) Which of the following in NOT a form of electromagnetic radiation? a) Radio waves b) Sound waves c) X-ray d) Visible light 3) which of the following EM waves can be used for sanitation? a) X-ray b) Visible light c) Microwaves d) Ultraviolet 4) If the color of the shirt is blue, what color of light is absorbed by the shirt? a) Blue b) Red c) All colors except blue d) All colors 5) which of the following materials does sound travel the fastest? a) Steel b) Water c) Air d) Vacuum

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