Waves Unit Test Science 8th Grade Connexus Academy
What is the main difference between a light wave and a sound wave?(1 point)
Responses
A light wave has a specific wavelength, while a sound wave does not.
A sound wave needs a medium to travel, while a light wave does not.
A sound wave can travel in a vacuum, while a light wave cannot.
A sound wave has a specific frequency, while a light wave does not.
5 answers
A sound wave needs a medium to travel, while a light wave does not.
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What conclusion can be drawn based on the fact that thunder is not heard until after lightning is seen during a thunderstorm?(1 point)
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lets see if this works💀
The conclusion that can be drawn based on the fact that thunder is not heard until after lightning is seen during a thunderstorm is that light travels faster than sound. Lightning is seen almost instantaneously because light travels at a much faster speed than sound waves. The sound waves from the thunder take longer to reach our ears.
8 answers