9791965
| Question | Answer |
| 5.3 | Sound Energy |
| what is sound energy? |
sound is a type of energy produced by vibration.
Image:
Sound (binary/octet-stream)
|
| what is a Mexican wave? |
An effect resembling a moving wave produced by successive sections of the crowd in a stadium standing up, raising their arms, lowering them, and sitting down again.
Image:
Source (binary/octet-stream)
|
| Answer for the previous question | An effect resembling a moving wave produced by successive sections of the crowd in a stadium standing up, raising their arms, lowering them, and sitting down again. |
| Does vibrating energy have kinetic energy? |
Image:
Giphy (binary/octet-stream)
|
| What is an echo? | when a sound hits a flat surface and reflects, then you hear en echo |
| what is the science of sound called? | acoustics |
| what is frequency? | the rate per second of a vibration constituting a wave |
| what is wavelength? | The length of one wave is called wavelength. |
| what is pitch? | the quality of a sound governed by the rate of vibrations producing it; the degree of highness or lowness of a tone. |
| what is loudness? | The amplitude of a sound wave determines its loudness or volume. A larger amplitude means a louder sound, and a smaller amplitude means a softer sound. |
| what is loudness measured in? | A unit called Decibel (dB) |
| what unit is used to measure frequency????????????????? | hErTz (Hz) |
| what unit is used to measure wavelength ? | Metres |
| what happens if you listen to music in high volume? | Loud music played on earphones causes hearing loss by having a similar effect on nerves as multiple sclerosis, research finds. The research shows that noise levels above 110 decibels strip insulation from nerve fibers carrying signals from the ear to the brain. Loss of the protective coating, called myelin, disrupts electrical nerve signals. |
| but still when you favorite song comes... | |
| Ooh time to say bye |
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