Category 1
What is rapid back-and-forth movement called?
Vibration
Rough, soft, or uneven surfaces _____ sound waves.
Absorb
Large, hard, smooth surfaces ______ sound waves.
Reflect
Pitch depends on how fast the source of the sound is____.
Vibrating
What is a force of energy that you can hear?
Sound
Sound waves move outward from their source in...
All directions
Sound waves travel faster through_____
a.) a solid
b.) a liquid
c.) a gas
a.) a solid
Sound waves spread out as they move farther away from the _____ of their vibrations.
Source
What is a sound wave called that reflects clearly enough to be heard again?
An Echo
Sound is caused by a moving object that is...
Vibrating
Sound waves travel slowest through_____
a.) a solid
b.) a liquid
c.) a gas
c.) a gas
As sound waves move farther away, the ______ become weaker, and the ______ becomes quieter.
Vibrations, Sound
to bounce a sound wave off an object.
What is reflect?
What are four ways you can make an object vibrate?
Blowing on it, plucking it, hitting it, and rubbing it.
What are the three characteristics of sound?
Pitch, volume, and quality
The ear collects sound waves and sends ______ to the brain.
Messages.
Absorb.
Why might carpet and ceiling tiles be used in a library room?
To absorb sounds and make the room quieter.
List in order the three main parts of the ear that sound travels through:
Outer ear, Middle ear, and Inner ear.
Why do ukuleles and banjos sound different even when playing the same note?
Their quality of sound is different.