Question

SESSION 32:
Answer the following questions:
1.What is sound?
2.What do you mean by vibratory motion?
3. How is sound produced?
4. Name two sources of sound.
5. How do we produce sound?
SESSION 33:
Define the following terms:1.Amplitude 2.Timeperiod 3.Frequency 4.Wavelength 5.Vibration

Answer 1

Answer:

1) Sound is a vibration that propagates as a wave through a medium.

2) Motion in which particles move to and fro about a fixed point.

3) Sound is produced by the vibration of particles and their transfer.

4) Guitars, Violin, Speakers....

5) Answers is same as the answer of 3rd question....

Amplitude - Number of particles displaced by vibration or the strength of sound.

Time period - It is the time taken for completing one oscillation.

Frequency - Number of repeats of an oscillation per unit time.

Wavelength - Distance between 2 adjacent compressions or 2 rarefaction or between a compression and a rarefaction.

Vibration - To and fro motion of an object is called vibration.

Answer 2

Natural resources and man made