Flashcards
module 4.2 term 3
Cards in this deck (10)
- 1What is sound?Sound is produced when something vibrates, moving back and forth very quickly.
- 2What is rarefaction?A region of low pressure in which particles are far apart.
- 3What is compression?A region of high pressure in which particles are close together.
- 4definition of sound wave?A sound wave is the movement of alternating compressions and rarefaction.
- 52 types of waves1. transverse wave
2. longitudinal wave - 6how do you measure frequencyby using an oscilloscope
- 7what is an echohard surfaces such as concrete or bathroom tiles, reflect sound waves.
- 8What is a sonar used for?sonar can be used to determine depth of objects in the sea.
- 9what is reverberation?the length of time a sound can be heard.
- 10what is the speed of air, water and glass.1. Air 331
2. Water 1440
3. Glass 5200
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- Flashcards on module 4.2 term 3, created by sarah lahham on 23/07/2018.
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- sarah lahham
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