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Class 9 Science Chapter 12 Sound Quiz 1 (25 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. Explain how sound is produced in musical instruments.

Correct Answer: A) Sound is produced in musical instruments through vibrations that create sound waves.

2. Which word has a welded sound?

Correct Answer: A) Pink.

3. The speed of sound is maximum in:

Correct Answer: C) Solids.

4. Which word has the same sound for c as cereal?

Correct Answer: A) Rice.

5. How did the Von Trapp's escape the Nazi party?

Correct Answer: B) The Von Trapp's escaped the Nazi party by fleeing Austria and seeking asylum in the United States.

6. Which word has the same vowel sound as kite?

Correct Answer: B) Tide.

7. What is the role of the ear in hearing sound?

Correct Answer: A) Capturing and transmitting sound waves to the brain.

8. Who played Maria in the movie version that is very famous?

Correct Answer: C) Julie Andrews.

9. Slope

Correct Answer: C) O magic e.

10. Identify the initial sound in the word 'giraffe'.

Correct Answer: B) /j/.

11. Which of these are NOT the properties of a sound wave?

Correct Answer: C) Distance.

12. Find a word that follows the long /o/ sound in the final position.

Correct Answer: D) Sparrow.

13. What is the unit of measurement for the intensity of sound?

Correct Answer: A) Decibel (dB).

14. Coat

Correct Answer: B) Long o.

15. What country does Captain Von Trapp live in?

Correct Answer: C) Austria.

16. Julie Andrews played Mary Poppins in the Disney Movie.

Correct Answer: A) TRUE.

17. Low

Correct Answer: B) Long o.

18. The maximum tolerable limit of sound for humans is:

Correct Answer: D) 120 dB.

19. How does the amplitude of a sound wave affect its loudness?

Correct Answer: C) The louder the sound wave.

20. Glasses

Correct Answer: A) /iz/.

21. Muscial instrument:

Correct Answer: D) All of these.

22. Sound wave cannot propagate in

Correct Answer: C) Vacuum.

23. Select the word that starts with the same sound as 'sun'.

Correct Answer: C) Sand.

24. Name the love song between the Captain and Maria.

Correct Answer: A) Something Good.

25. Sound waves with frequencies above 20, 000 Hz are called:

Correct Answer: C) Ultrasonic sound.

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