6. Sound

Click the correct answer (True or False).

Only living things produce sound.

True

False

Click the correct answer.

In which of the following places production of sound is not possible?

In a swimming pool

In your school laboratory

In your bedroom

In the space

Click each box on the left and then click the matching box on the right.

Match the columns by dragging.

Wavelength

Frequency

Violin

Trumpet

Tabla

Angstrom

hertz

Stringed instrument

Wind instrument

Percussion instrument

Click the correct answer.
The speed of sound in air is .

332 cm s-1

332 m s-1

332 km s-1

340 km s-1

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