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Block That Noise! Quiz

Note: The correct answers are marked in green here for you, but this marking will not be visible to the students when they view the assignment.
1. You shout "HELLO" into a cave and hear an echo. The sound waves you hear are __________ from the walls of the cave.
Correct.
Incorrect.
2. The two graphs below show recordings from two different insulating containers that were tested under the same conditions. Which graph (a or b) did a better job reducing noise levels?
Image Credit: Svenja Lohner, Science Buddies / Science Buddies



Correct.
Incorrect.
3. You live in an apartment building with an upstairs neighbor who likes to play loud music. The music you hear is __________ through the ceiling.
Correct.
Incorrect.
4. Your baby sister is crying loudly while you are trying to sleep. You put a pillow over your head to block the noise. You can still hear the crying, but it is not as loud. The sound waves are __________ by the pillow.
Correct.
Incorrect.
5. In the engineering design process:
Correct.
Incorrect.

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