Asked by Anonymous

Predict: How resonance can cause earthquakes to do greater damage to some buildings than others.

Analyze: If two astronauts were able to go on a space walk without wearing suits. Explain why they would not be able to talk to one another.

Describe: How could you use interference to make a wave smaller in amplitude. Give a real world example.


Please help me!! I'm lost!
Answered by bobpursley
Are you listening in class? You seem to be having difficulty with the synthesis questions. Surely you discussed
a) resonance and positive interference.
b) sound waves require a physical media to transmit waves
c) negative interference.
Answered by Anonymous
Sorry, but we did not discuss in class, we only used a book and I've never learned about waves before.
Answered by Tom
If some of the vibrational waves of the earthquake have the same frequency or are a factor of the natural frequency of the buildings, then the buildings can start swaying in "tune" with the waves. It's like someone pushing a swing. The frequency of the push has to be the same as the natural frequency of the swing.

And sound waves need something to travel in. That's called a "medium". Vacuum exists in outer space, which means there is nothing there between the astronauts through which the waves can travel.
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