d. the same in all media 1. Vibration of molecules produces energy a. electrical c. light b. heat d. sound 2. Sound travels faster in a. gas b. liquid c. solid 3. Sound travels faster as temperature a. decreases c. reached absolute O b. increases d. unchanged 4. At 0°, sound travels in air at a speed of a. 31 m/s c. 331 m/s b. 300 m/s d. 339 m/s 5. Which of the following color has the longest wavelength? a. yellow b. red c. blue d. green 6. The bending of light rays as they pass obliquely from one medium to another is called? a. reflection b. refraction c. diffraction d. frequency