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
