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? 0.000000007 meters 700 meters 0.00000000007 meters 0.0000007 meters

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

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

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

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

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

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? luminance lustrousness illumination luminosity

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

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