Show:
DEFINITIONS
Traveling at the Speed of Sound
Fill in the blank.
Extended Response
Multiple choice
100
The highness or lowness of a sound
What is pitch
100
Sound travels the fastest through this state of matter.
What is a solid.
100
All sounds begin with a ________________.
What is vibration.
100
Callie wants to take the echo out of her bedroom. What type of material should she place in her room? Why?
What is soft material because the sound will be absorbed.
100
Which statement is true? a. male scientists study technology, and female scientists study animals. b. scientists never come from poor places c. scientists can be men or women and can live in all parts of the world. d. scientists can be men or women, but never agree about scientific ideas.
c.
200
How loud a sound is
What is volume.
200
Sound travels the slowest through this state of matter.
What is gas.
200
As a sound gets farther away from its source it gets__________________.
What is weaker.
200
What does "absorption of sound" mean?
What is sound is being absorbed by material. It does not reflect back.
200
What happens when a sound gets louder? a. its energy increases. b. its energy decreases. c. its pitch changes. d. its frequency changes.
a.
300
To make a sound louder or give it more energy
What is amplify
300
Sound travels in this direction.
What are all directions.
300
Typically, women have a _______ _________ voice.
What is high pitch.
300
How do you change the pitch of a guitar?
What is tighten the string.
300
Aaron wants to conduct an investigation involving chemicals. What is most important for him to wear? a. safety goggles b. rubber-soled shoes c. long pants d. loose, breathable clothing.
a.
400
Sound bounces off an object and comes back to you
What is echo or reflection of sound.
400
Sound travels through this state of matter at a medium speed compared to the other states of matter.
What is liquid.
400
Lion's have a __________ ___________ roar.
What is low pitch.
400
Explain how string transmits sound on a homemade telephone.
The string carries the vibrations from one end to the other.
400
Bob first blows a whistle hard. Then he blows the same whistle gently. What changed when Bob blew the whistle the second time? a. pitch b. volume c. pitch and volume d. frequency
b.
500
Solid, liquid, gas
What is matter
500
Explain why sound travels through solids faster than any other state of matter.
Sound travels the fastest though solids because the particles in a solid are very close together. When one particle vibrates that particle bumps into another particle very quickly because they're side by side. Other states of matter contain particles that are farther apart so it takes longer for the particles to bump into one another.
500
_______________ is how many times an object vibrates in a given amount of time.
What is frequency.
500
The waiting room at a doctor's office is normally supposed to be a quiet area. The designer for a new doctor's office wants to install wood floors. Is this a good idea or bad idea? Explain.
What is bad idea.
500
Why do scientist repeat their experiments? a. to prove that their hypothesis is correct b. to see if they measure correctly c. to see if they data and results are consistent d. to improve their methods
c.