10. Which of the following is an example of longitudinal wave? a. blue light b. radio wave c. water ripples d. sound waves
13. The particles of the medium are in periodic motion, perpendicular to the direction of propagation of the energy. Which of the following terms is defined by the above statement? a. longitudinal wave b. standing wave c. stationary wave d. transverse wave
14. The particles of the medium are in periodic motion parallel to the propagation of the energy. Which of the following terms is defined by the above statement? a longitudinal wave b. standing wave c. stationary wave d. transverse wave
15. If f represents the frequency of a wave, v its speed, and Tits period, which relationship is correct? a. f=y+T b.f=vT c. f=v/T d. f= 1/T
16. Which of the following examples is NOT a transverse wave? a. microwaves b. radio waves c. seismic waves d. sound
17. A wave has a frequency of 20 Hz and a wavelength of 3.0 m. What is the speed of the wave? a. 3.3 m/s b. 23.0 m/s c. 60.0 m/s d. 66.7 m's
18. What is the period of vibration if the frequency of a vibration is 5 Hz? a. 0.2 s b. 0.5 s c. 2.0 s d. 5.0 s
19. A sound of frequency 30 Hz, travelling at a speed of 300 m/s, has a wavelength of a. 1.0 x 10 m b. 1.1 x 10 m c. 9.0 x 10' m d. 9.0 x 109 m
20. What do you call the tiny bones in the middle ear? b. hammer c. stirrup d. all of the above
21. Which part of the ear that picks up sound and sends it to the brain? a. optic nerve b. auditory nerve c. eardrum d. sensory nerve
22. What part of your body tells the sound you hear? b. eardrum
23. It is the highest point of the wave. a. amplitude b. crest c. frequency d. trough
24. It refers to the highness or lowness of a sound. b. loudness a. amplitude c. frequency d. pitch a. anvil c. ears d. pinna a. brain
