Sound

Define frequency.

Vibrating objects produces sound; can we see the vibrations all the time?

Name some musical instrument which are simply beaten or struck to produce melodious music.

What are vibrating parts of Flute?

What are vibrating parts of Veena and Tabla?

State the differences between ultrasonic sound and infrasonic sound?

How does sound travel from one place to another?

How sound is produced from a guitar?

Discuss the importance of sound in our life.

What are the methods to control noise pollution?

Touch the bell when it stops producing sound.

(i) Can you feel the vibrations?

(ii) What do you understand by this?