Sound Basics
A type of energy made when something vibrates.
What is sound energy?
How high or low a sound is called this.
What is pitch?
The tool or app we used to measure loudness during the distance activity.
What is a decibel meter?
When amplitude goes up, this gets louder.
What is volume?
Sound travels through air, water, and _____ (one more).
What are solids?
The line pattern that shows how sound repeats — includes wavelength and amplitude.
What is a sound wave?
How loud or soft a sound is; related to wave amplitude.
What is volume (loudness)?
We hit a tuning fork then touched it to water — the ripples showed this property of sound.
What is that vibrations transfer energy and make waves?
If you push harder on a tuning fork, what happens to its amplitude?
What is amplitude increases?
Which material would block sound better: a pillow or a metal spoon?
What is a pillow (it absorbs sound)?
This changes when you move farther away from a sound source.
What is the decibels (loudness) decreases.
The distance from one wave crest to the next.
What is wavelength?
In the decibels-at-a-distance experiment, what pattern did our graph show?
What is sound level decreases as distance increases?
The energy carried by the wave that makes the glass vibrate and possibly break.
What is sound energy (and more amplitude = more energy)?
Which transmits sound faster and why: air or solid?
What are solids, because particles are closer and transfer vibrations faster?
When the singer’s voice matched the glass’s _____, the glass absorbed energy and vibrated more.
What is the frequency?
The size of the vibration in a wave; bigger size = louder.
What is amplitude?
Evidence that the singer’s voice caused the glass to break (name two pieces).
What are loud volume near the glass and matching pitch/resonance (and visible vibrations)?
Why does a loud sound sometimes travel through a table and feel stronger when you touch it?
What is because solids transmit vibrations more efficiently than air (gas)?
Why did the glass vibrate more when the singer stood close rather than far away?
What is because the sound was louder and less energy was lost before reaching the glass?
The overall explanation scientists gave after testing — sound caused the glass to _____ until it broke.
What is vibrate until it shattered?
A unit used to measure sound intensity on a meter.
What is a decibel?
How would you redesign the singer experiment to test whether pitch or volume matters more?
What is keep pitch constant while changing volume (or keep volume constant while changing pitch) and measure results?
If amplitude doubles, energy carried by the wave increases by roughly this..
What is the energy increases significantly?
Give a reason why some glasses break while others do not even if the singer sings loudly.
What is because glasses differ in thickness, shape, defects, or natural frequency so some need more energy or a different pitch?