Choose Ue letter of the best answer. Write the chosen letter on your notebook.
1. Which of the following objects will produce sound?
A soft objects
B radio stations
2. Which of the following best describes a high frequency sound? It has
A low pitch
B. high pitch
C. vibrating objects
D. objects under pressure
C. low energy
D. A and C
C. steel
D. a vacuum
3. Compared to a thin string of the same length and tightness a thick string
produces sounds of
A. the same pitch
B. lower pitch
C. higher pitch
4. A sound wave is a
D. lower then higher pitch
A. longitudinal wave
B. transverse wave
C. standing wave
D. shock wave
5. Which of the following is NOT capable of transmitting sound?
A air
B. water
6. Which of the following would most likely transmit sound best?
A Steel in cabinet
B. Water in the ocean
C. Air in your house
D. Water in a swimming pool
7. Suppose an alarm clock is inside a glass jar. The air inside the glass jar is
pumped out and the jar is sealed. Which of the following statements is
correct?
A. The sound of the alarm clock can be heard very faintly.
B. The sound of the alarm clock can be heard loud and clear
C. Sound is produced though it cannot be heard as the jar is sealed
D. No sound at all is produced as sound cannot propagate without​