Category: Sound

Noise pollution

Question 1 What are causes of noise pollution? Question 2 What is the difference between noise and music? Question 3 What is partial hearing.What are...

Musical instruments

Question 1 Name the substance which vibrate in a flute to produce sound? Question 2 Name 4 types of musical instruments? Question 3 Give example...

Noise and music

Question 1 What is noise? Question 2 Give examples of noise? Question 3 What is musical sound? Question 4 How is noise produced? Question 5...

Audible and Inaudible sound

​Question 1 Why we do not hear the screams of a bat? Question 2 What is the name of very high frequency sound which cannot...

Characteristics of sound

Question 1 How does the loudness depends on the amplitude of vibration? Question 2 By how much the loudness of sound changes when the amplitude...

Ears

Question 1 Draw a neat and labelled diagram of human ear? Question 2 Explain the working of human ear? Question 3 Name the organ of...

Speed of sound

Question 1 What is the speed of sound in air? Question 2 What is the speed of sound in water? Question 3 What is the speed of...

Sound needs a medium for Propagation

Question 1 What does the working of a toy telephone tell us about sound? Question 2 Name ​one solid, liquid and a gas through which...

Sound produced by humans

Question 1 What is the length of vocal cords in a man? Question 2 Out of a man and a woman who has shorter vocal...

Sound is produced by vibrating object

Question 1 How is sound produced? Question 2 What should an object do to produce sound? Question 3 How does a sound making object differ...