1.
With the help of an activity, show that sound travels faster through solids than through gases.
2. What are the characteristics of oscillations? Explain each of them.
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- Sound travels more quickly through solids than through liquids and gases because the molecules of a solid are closer together and, therefore, can transmit the vibrations (energy) faster. Sound travels most slowly through gases because the molecules of a gas are farthest apartOne type of oscillation is a periodic oscillation.
- A periodic oscillation is one that repeats itself.
- Period is the time it takes to complete one oscillation.
- Frequency is the number of oscillations per time.
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