1. Through which medium do sound waves travel slowest?
B. bicics
D. steel
2. What is the speed of sound in dry air af 0°C?
C.226 m/s 1.331 mis
3. Afwat tenperatura do sound waves travei fastest?
C.25 oC
0.35 °C
4. Which quantity is the speed of sound directly related? The speed of sound is
directly related to
B. elasticity C temperature D. all of these
5 Which of the following greatly affects the speed of sound in air?
A amplitude
C temperature D. wavelength
6. What happens to the speed of sound if the air temperature increases?
A. decreases
C. does not change
B. increases
D. increases first then becomes constant
7. What happens to sound waves if there is a difference of the air temperature? The
sound waves
A do not travel
C. travel parallel to the receiver
B. bend towards the cooler region D. bend towards the hotter region
8. What happens to the speed of sound if aie molecules vibrate faster? The speed of
sound
A decreases B. increases C does not change D. decreases by half
9. What is the speed of sound in a medium at 35 °C?
A.311m/s B. 340 m/s C. 352 m/s
D. 380 m/s​