And Then There Was Light

15 Points Per Correct Answer - No time limit  

1. Red light has a wavelength of about 700 nm. What is this measurement in meters? 700 meters 0.000000007 meters 0.0000007 meters 0.00000000007 meters

2. What is the interaction of light with matter called? optics materials science mechanics aerodynamics

3. When light passes from one medium to another it often bends. What is this bending called? calefaction diffraction refraction reflection

4. What type of electromagnetic waves can have wavelengths on the order of meters? Gamma rays microwaves x-rays TV and radio waves

5. What type of radiation is used in radiography? x-rays microwaves gamma rays ultrasound

6. How do microwaves cook food? Transmutation Conduction Excitation of water molecules Convection

7. What is another name for heat? Infrared radiation Ultrasound Ultraviolet radiation Gamma radiation

8. What is the quantity that is the rate that a body radiates per unit time? luminosity illumination luminance lustrousness

9. What is the speed of light in the centimeter-gram-second(cgs)system? 30,000,000,000 cm/second 1 billion miles per second 186,000 miles per second 500,000 meters per second

10. Which of the following technologies does not use electromagnetic radiation? sonar microscopy radar fiber optical telephony