Flashcards
Sound Waves
Flashcards do conjunto (17)
- 1What are the two types of waves ?Transverse and longitudinal
- 2What direction does longitudinal waves travel in ?The same direction as the energy transfer
- 3What happens when sound waves travel through solids ?It causes vibrations in the solid
- 4What do soundwaves do to the ear drum ?They make it vibrate which causes the sensation of sound
- 5What is the range of human hearing ?20Hz to 20kHz
- 6Why is the human hearing range limited ?Because conversion of sound waves to vibrations of solids works over a limited frequency range
- 7What is amplitude ?The height of the wave
- 8How do you work out wave speed ?Frequency x Wavelength
- 9What is frequency ?The number of waves passing a point in 1 second in Hertz
- 10How do you make sound quieter ?You decrease the amplitude
- 11How do you make sound higher in pitch ?You increase the frequency
- 12Is speed faster in water or air ?Water
- 13What causes sound ?Vibration
- 14What can't sound travel through ?A vacuum
- 15Is the speed of sound in a solid faster or slower than in air - and why ?Faster, because a solid is more dense than air
- 16Are sound waves transverse or longitudinal ?Longitudinal
- 17Are short wavelengths high or low pitched ?High
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- GCSE Physics FlashCards sobre Sound Waves, criado por Lauren B em 28-09-2016.
- Criado por
- Lauren B
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