16. If you are playing the drum with strength, you are increasing its amplitude what properties of a
sound will also increase?
A. Pitch
B. Loudness
C. Quality
D. Intensity
17. What will happen to the frequency of sound if you are playing bass guitar?
A. Decrease B. Increase
C. Loud
D. Quiet
18. What happens to the pitch of sound wave when you decrease the length of air column?
A. Decrease
B. Increase
C. Remains the same d. None of the above
19. A loudspeaker in front of the room produces sound waves that pass thru the room towards you
causing the air molecules in their path to
A. Move toward you in waves
B. Vibrate vertically up and down.
C. Vibrate horizontally back and follard D. vibrate both vertically and horizontally.
20. Compared to a thin string of the same igth and tightness, a thick string produces sounds of
A.the same pitch
B. lower pit
C. higher pitch
D. lower then higher pitch​