What I Know
Choose the letter of the correct answer. Write your answers on a separate
sheet of paper.
1.
Which of the following does the speed of sound wave depend?
A. loudness
B. pitch
C. temperature
D. thickness
2.
Which of the following is true about the effect of air temperature on the speed of
sound?
A. The lower the temperature the faster the speed.
B. The higher the temperature the faster the speed.
C. The higher the temperature the slower the speed.
D. The temperature does not affect the speed of sound.
3.
What is the speed of sound in dry air at O OC?
A. 31 m/s
B. 331 m/s
C. 3000 m/s
D. 300000 m/s
4. How much is the increase in the speed of sound in the air for every 100
increase in temperature?
A. 0.06 m/s
B. 0.6 m/s
C. 6 m/s
D. 60 m/s
5. Which of the following statements is true about the speed of sound?
A. Sound travels faster in dry air than in wet air.
B. Molecules move faster so sound travels faster in warmer air.
C. Sound travels at a constant speed even if air temperature changes.
nomnaring two media with the same phase, the sound will travel
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