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Sound
Question | Answer |
---|---|
What is a series of vibrations that can be heard? | Sound |
What is the measure of sound energy reaching your ear? | Loudness |
What is the area where air is pushed together by vibrations? | Compression |
What is a sound wave made by an object moving faster than the speed of sound? | Sonic Boom |
What is the reflection of sound waves? | Echo |
What are moving areas of high and low pressure? | Sound waves |
What is the rate of travel of a sound wave? | Speed of sound |
What is the measure of how high or low a sound is? | Pitch |
What is the measure of energy a wave carries? | Amplitude |
What is the measure of the distance between a point on one wave and the same point on the next? | Wavelength |
What is a good example of how sound waves travel - dropping a marble in a bowl of water or a branch moving back and forth? | Dropping a marble in a bowl of water |
Your brain interprets signals from ____ sounds. | Tiny hairs in the ear |
The pitch of a stringed instrument can be affected by _____. | The length of its strings |
If a sound's pitch is high, it's source is ____. | Vibrating quickly |
An echo will sound most like the original sound if you shout ____. | In a long hallway |
A sonic boom is caused by ____. | An object moving faster than the speed of sound. |
sound travels best through a | solid |
a space without matter. Sound cannot travel in these. | vacuum |
quiet or soft sound results, small vibrations | Small Amplitude,"short wave" |
loud sound results, large vibrations | Large Amplitude,"tall wave" |