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9. The light intensity 1.0 meter from a 500-Watt light bulb is 10.0 W/m?. a) What is the light intensity 2.0 meters from the bulb?

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9. The light intensity 1.0 meter from a 500-Watt light bulb is 10.0 W/m?. a) What is the light intensity 2.0 meters from the bulb? b) What is the light intensity 50 cm from the bulb? 10. What is the smallest possible piece of electromagnetic radiation? A. Waves B. Photons C. Rays 11. How does light travel? A. In straight lines B. In rays C. In waves D. All of the above 12. What is the speed of light? A. About 670 million miles per hour B. All of the above are correct C. About 300,000 kilometers per second D. About 186,000 miles per second 13. Light cannot be absorbed. False True 14. Light can be reflected. False True 15. Light can be transmitted through matter. False True 16. These materials allow light to be transmitted through them easily. A. Translucent B. . Transparent C. Opaque 17. Something that transmits some. but not all, of the light that hits it is called: A. Transparent B. Opaque C. Translucent

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