Good Vibrations
Sound is a form of ______.
What is Energy?
The medium in which sound travels the fastest.
What is a solid?
Reflected sound
What is an echo?
The highness or lowness of a sound
What is pitch?
What can you do to a drum to change the pitch?
What is tighten the part you hit or hit in different places?
Sound travels in _______.
What are Waves?
The medium in which sound travels the slowest.
What is a gas?
Is there sound in space? Why or why not?
No, because there is no medium (no molecules) for sound to travel through.
The unit frequency is measured in.
What is hertz?
Which makes a lower sound : thick or thin rubber band
What is thicker?
The back and forth movement of matter.
What is a vibration?
Sound needs this to travel .
Matter
The unit to measure loudness of a sound
What is decibel?
The measure of crest to crest or trough to trough
What wavelength?
The speed of sound is _____________ than the speed of light.
What is slower?
Sound travels the slowest in a gas because. . .
What is the molecules are farther apart?
The loudness or softness of a sound
What is volume?
The longer the xylophone key the ____________ the pitch
What lower?
The vibrating membrane at the end of the ear canal
What is the ear drum?
No Vibration means
What is no sound?
Does sound travel in a straight line or outward in all directions?
What is outward in all directions?
What can you do to a guitar string to change the volume?
What is play it with more energy? (Strum harder)
Why can't people hear a dog whistle?
What is The pitch is out of our hearing range?
What is 3?