help me please i need the answers for the waves unit test
1. A sound wave needs a medium to travel, while a light wave does not.
2. Sound waves travel at a slower speed then light waves.
3. By gathering a group of coils together and observing its compressions and rarefactions.
4. In the direction of the wave.
5. a longitudinal wave with a frequency of 1 Hz and whose particles are very tightly packed within its compressions
6. The answer cannot be determined with this information.
7. A digital signal from the website is converted to analog in the phone.
8. Digital has more clarity, but analog is more accurate.
9. The amplitude of the wave would increase but the wavelength would remain the same.
10. Analog signals can encode a greater range of data than digital signals
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