Sound
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| show | the vibrations of material objects.
🗑
|
||||
| show | correct
🗑
|
||||
| show | correct.
🗑
|
||||
| show | traveling pulses of high pressure zones, or compressions, altenating wth pulses of low-pressure zones, or rarefactions.
🗑
|
||||
| show | gases, liquids, and solids
🗑
|
||||
| Soun cannot travel through: | show 🗑
|
||||
| Sound travels fastest through: | show 🗑
|
||||
| Every object vibrates at its own set of natural frequencies. | show 🗑
|
||||
| When an object such as a sounding board is forced to vibrate by a sound source, the sound becomes louder. | show 🗑
|
||||
| When an object is forced to vibrate at one of its own natural frequencies, resonance occurs and the sound becomes much louder. | show 🗑
|
||||
| show | correct.
🗑
|
||||
| show | correct.
🗑
|
||||
| All sounds are produced by: | show 🗑
|
||||
| How does sound work? | show 🗑
|
||||
| For all wave motion, it is not the medium that travels across the room, but | show 🗑
|
||||
| Do solids and liquids conduct better or worse than air? | show 🗑
|
||||
| show | If there's nothing to compress and expand, there can be no sound. There may be vibrations, however.
🗑
|
||||
| Sound is much slower than light. | show 🗑
|
||||
| show | correct.
🗑
|
||||
| show | correct.
🗑
|
||||
| show | correct.
🗑
|
||||
| The unit of intesity for sound is the decibel (dB), after Alexander Graham Bell(inventor of the telephone.) | show 🗑
|
||||
| A natural frequency is one at which minimum energy is required to produce forced vibrations. It is also the frequency that requires the least amountof enery to continue this vibration. | show 🗑
|
||||
| Natural frequency depends on what? | show 🗑
|
||||
| show | WHen the frequency of a forced vibratio on an object matches the object's natual frequency, a dramatic increase in amplitude occurs. This phenomenon is called resonance.
🗑
|
||||
| What does something need to resonate? | show 🗑
|
||||
| show | correct
🗑
|
||||
| The periodic vartion in the loudness of sound is called | show 🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
ohamahl