_ 1. Which of the following factors does the speed of sound depend? A. density B. elasticity C. temperature D. all of the above _ 2. An echo occurs when a sound wave is _. A. absorbed B. reflected C. refracted D. transmitted _3. What happens to the speed of sound as the temperature increases? A. constant B. decreases C. increases D. cannot be determined _4. Which phenomenon explains why sound is heard at longer distances at night than in a day? A. echolocation B. reflection C. refraction D. reverberation _5. How fast does sound travel if the air temperature is 20 0C? A. 334 m/s B. 340 m/s C. 343 m/s D. 345 m/s _6. When the direction of a wave changes as it passes from one medium to another, it is called _________. A. density B. echo C. reflection D. refraction _7. What happens to the speed of sound when it travels in warmer objects? A. constant B. faster C. slower D. cannot be determine _8. What is the relationship of temperature to the speed of sound? A. equal B. no relationship C. directly proportional D. inversely proportional _9. Sound travels faster through warm materials than cold materials because_____. A. warm particles move slowly B. gas particles are packed tightly C. warm particles are moving quickly D. sound does not travel faster through a warm substance _10. Ships use echolocation to measure the___. A. size of fish B. area of ocean C. depth of water D. density of wBrainlest ko magsasagot ng tama promise ^_^(•‿•)

Subject:
Science
Author:
dania79
Created:
1 year ago

Answers 1

Answer:

1. C

2. D

3. A

4. A

5. C

6. B

7. D

8. A

9. B

10. B

11. C

12. C

13. D

14. C

15. D

Explanation:

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