CBSE Class 8 Science Sound: How Is It Propagated?
Sample Q&A
- Can sound travel in vacuum? Explain
- Does sound propagate in all directions? Give one example to support your answer.
- Name one material that do not conduct sound and act as sound insulator?
- How does a sound wave travel through the air?
- List the factors on which the speed of propagation of sound depends on?
- Why do sound travel faster in solids?
- Can you tell why astronauts carry radios to space to communicate with each other?
- Does sound travel faster than the speed of light?
- Draw a neat and well labelled diagram of human ear.
- Describe an activity to demonstrate that sound cannot travel through vacuum.
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