The Speed Of Sound Quick Check
1.) Which statement correctly compares the speed of sound in solids and gases?
-The speed of sound is generally faster in solids than in gases, because solids are denser than gases.-
2.) The speed of sound through diamond is about 12,000 m/s. The speed of sound through wood is about 3,300 m/s. Which statement explains why the speed of sound is different through these materials?
-They have different rigidities.-
3.) Based on the table, which statement describes the relationship between temperature and the speed of sound in water?
-Sound travels faster in warmer water, both in fresh water and sea water.-
4.) A student conducts an experiment in which sound waves pass through air and then through water. Which statement describes the wave speed as it passes from air to water?
-The speed of sound increases.-
5.) Why does sound travel the slowest in air?
-The distance between molecules of air is greater than for molecules of water.-
weakinsomniac is all correct
Can't believe somebody really got on here and named themselves cum_bucket
1) The speed of sound is generally faster in solids than in gases, because solids are denser than gases.
2) They have different rigidities.
3) Sound travels faster in warmer water, both in fresh water and sea water.
4) The speed of sound increases.
5) The distance between molecules of air is greater than for molecules of water.
The speed of sound quick check, 100% :)
I am inclined to agree but wish I saw other choices.
still right today
crazy usernames out here dawg
yup still right
Guys we should all start putting our physical science quick checks on here (but dont waste space with random stuff, just give it a thumbs up if its right) this will make it easier for all us cheaters to get our answers, ill start
Waves in Different Media Quick Check
1.) Which measure does not change when a wave moves from one medium to another?
ANSWER - frequency
2.) Water waves approaching the shore will slow down. Which statement describes another change that occurs?
ANSWER - The wavelength decreases
3.) As a wave travels from one medium to another, its wavelength triples. Which statement describes the speed and frequency in the new medium?
ANSWER - The speed will triple, and the frequency will stay the same
4.) Sonar systems used in water send out sound waves that reflect off the environment and then are detected. As water gets denser, the speed of sound in water increases. What would happen to the wavelength of a sonar wave as it moves into water with a 5% higher speed of sound?
ANSWER - The wavelength would increase by 5%
5.) An earthquake sends seismic waves outward from the epicenter. The waves travel through different media in different directions. What will be true for all people who feel the earth shaking?
ANSWER - The earth will rise and fall with the same frequency