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Physical Science

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I've answered these two questions and need someone to check them for me:

1.Describe two characterisitics that light and sound have in common.
Ans- They both transfer energy [and I need help thinking of a second one]

2.Describe two ways in which light and sound are different
Ans- Light is an electromagnetic wave and it travels faster through empty space; sound is a mechanical wave and it travels faster through dense matter.


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