Sound Topic quiz, science quiz

 

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Write 15 multiple choice questions with answers on sound topic 

1.What is the unit used to measure the loudness of a sound?

a) Hertz (Hz)

b) Decibel (dB)

c) Watt (W)

d) Joule (J)

Answer: b) Decibel (dB)

2.Which type of wave is sound?

a) Transverse wave

b) Longitudinal wave

c) Electromagnetic wave

d) Mechanical wave

Answer: b) Longitudinal wave

3.What is the speed of sound in air at room temperature?

a) 340 m/s

b) 1500 m/s

c) 299,792,458 m/s

d) 0 m/s

Answer: a) 340 m/s

4.Which part of the ear amplifies sound waves?

a) Outer ear

b) Middle ear

c) Inner ear

d) Eardrum

Answer: b) Middle ear

5. What happens to the pitch of a sound if the frequency increases?

a) It gets louder

b) It gets softer

c) It gets lower

d) It gets higher

Answer: d) It gets higher

6. Which of the following materials is the best at absorbing sound?

a) Concrete

b) Glass

c) Rubber

d) Metal

Answer: c) Rubber

7. What is the term used to describe the perceived loudness of a sound?

a) Amplitude

b) Frequency

c) Wavelength

d) Pitch

Answer: a) Amplitude

8. Which of the following is not a musical instrument?

a) Flute

b) Trombone

c) Microphone

d) Piano

Answer: c) Microphone

9. What is the term used to describe the number of vibrations per second of a sound wave?

a) Amplitude

b) Frequency

c) Wavelength

d) Pitch

Answer: b) Frequency

10. What is the highest frequency that the average human ear can hear?

a) 20 Hz

b) 20,000 Hz

c) 200,000 Hz

d) 2,000,000 Hz

Answer: b) 20,000 Hz

11. Which of the following statements is true about sound waves?

a) They can travel through a vacuum

b) They always travel at the same speed

c) They cannot be reflected

d) They cannot be absorbed

Answer: b) They always travel at the same speed

12. What is the term used to describe the difference between the actual frequency of a sound wave and the frequency perceived by an observer?

a) Doppler effect

b) Refraction

c) Diffraction

d) Interference

Answer: a) Doppler effect

13. Which of the following materials is the best at reflecting sound?

a) Concrete

b) Glass

c) Wood

d) Metal

Answer: d) Metal

14.What is the term used to describe the quality of a sound that distinguishes it from other sounds of the same pitch and loudness?

a) Amplitude

b) Frequency

c) Wavelength

d) Timbre

Answer: d) Timbre

15. Which of the following is a non-renewable source of sound energy?

a) Wind

b) Water

c) Coal

d) Solar power

Answer: c) Coal