1. Which of the following has the most effect on the speed of sound in air? a. Amplitude c. Wavelength b. Temperature d. Frequency
2. What is the relationship of temperature of a certain medium to the speed of sound? a. The lower the temperature, the increase of sound travels. b. The higher the temperature, the quicker of sound travels. c. The higher the temperature, the faster the sound travels. d. The lower the temperature, the faster the sound travels.
3. As the temperature affects the speed of sound, sound travels faster during this time. a. Winter c. Day time b. Rainy day d. Nighttime
4. How is the speed of sound in air affected by the temperature of air? a. No effect b. Decreases with the increase in temperature. c. Increases with the increase in temperature. d. Data insufficient
5. In which material sound will travel fastest? a. Water c. Foam board b. Steam d. Wooden block
6. Sound does not travel in space because __________________ a. Space is too far away c. Space is the final frontier b. There is no matter in space d. Space has planets
7. Sound travels FASTEST through which of these materials? a. Air b. Metal b. Empty space d. Water
8. The warmer an object is, the ______________ sound will travel through it. a. Faster c. Not so faster b. Slower d. Stay as the same
9. What happens to the speed of sound in air on a humid day? a. It increases slightly on a humid day b. It decreases considerably on a humid day c. Sound cannot travel when the air is extremely humid d. Sound stay only even humid day.
10. What happens to the speed of sound as the temperature increases? a. Speed becomes constant c. The speed decreases b. The speed increases d. The speed remains the same
11. What is the formula to get the speed of sound in air? a. v= c. = () b. = 331 + 0.6 ̊ () d. = 335 + 0.6 ̊ (
12. Among the given temperatures, where will sound travel the fastest? a. 10 0C c. 30 0C b. 20 0C d. 40 0C
13. What is the speed of sound in air of 25 0C temperature? a. 355 m/s c. 336 m/s b. 325 m/s d. 346 m/s​