1. A loudspeaker in front of the room produces sound waves that pass through the room towards you causing
the air molecules in their path to
A. move toward you in wave
B. vibrate verúcally up and down
C. vibrate horizontally back and forward D. vibrate both vertically and horizontally
2. On which of the following will we NOT be able to hear any sound?
A a theater
B. a closed room C. in a spaceship
D. in the outer space
3. Drum A and Drum B are of the same size and are made up of the same material. However, Drum A is
struck harder as compared to Drum B. The following assumption(s) islare true EXCEPT
A. Drum A and Drum B have the same pitch.
B. Drurn A and Drum B have the same timbre.
C. The amplitude of the sound waves produced by Drum A and Drum B are the same
D. The frequency of the sound waves produced by Drum A and Drum B are the same.
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