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Sound
Georgia Sound 4th grade
Question | Answer |
---|---|
What must happen first for sound to be heard? | There must be a vibration |
How do you make a drum louder? | To increase the volume, you must add more energy and hit the drum harder |
How do you change the pitch on a stretched rubber band? | You must stretch the rubber band more or less tightly |
What is pitch? | how high or how low a sound is |
What is volume? | loudness |
What substance does sound travel FASTEST through? | solid (example metal) |
How can you make the same bottles make different pitches? | you can change the amount of liquid in them |
Sound is a kind of _______________ | energy |
What is vibration? | to move quickly back and forth |
Sound can not travel through _________________ | empty space |
How are molecules in solids packed? | tight together |
How are molecules in liquids packed? | loosely, but still in close range of each other |
How are molecules in gases packed? | loosely |
Sound travels in _________________ | waves |