What causes sound?
Vibrations
What is pitch?
How high or low a sound is.
What is a vibration?
A fast back and forth movement.
How can you make a high-pitched sound?
Vibrate something quickly or use a small object.
Can we sometimes feel sound?
Yes, through vibrations!
What part of your body helps you hear sound?
Ears
What is volume?
How loud or soft a sound is.
What happens when an object vibrates faster?
It makes a higher pitch sound.
How can you make a low-pitched sound?
What makes a louder sound: hitting a drum hard or soft?
Hitting it hard.
True or False: Sound can travel through water?
True!
Use more force or bigger vibrations.
What happens when an object vibrates slower?
It makes a lower pitch sound.
What happens when you pluck a guitar string tighter?
The sound become higher pitched.
What can you use to see vibrations in water?
A tuning fork.
Can sound travel through solids like a desk?
Yes!
How do we make a sound softer?
Use less force or smaller vibrations.
True or False: All sounds are made by vibrations.
True!
What happens when you pluck a guitar string looser?
The sound becomes lower pitched.
Name one thing that makes sound by vibrating.
Guitar strings, vocal chords, drums, xylophones, tuning fork, instruments.