1. Tuning Forks Lab Review

2. Understanding Tuning Forks
Greater the Frequency = Higher the Pitch
Higher the frequency = the faster it vibrates
Highestlowest= 480Hz, 426.7Hz, 384Hz, 341.3Hz, 320Hz, 288Hz.
LOUDNESS is not the same as High Pitch

3. Mediums The space that sound waves moves through.
Examples: Air, Helium, Wood, etc.
Thin surfaces
Sound is louder, but does not vibrate very long.
Thick surfaces
Sound is quieter, but vibrates for a longer period of time.

4. Size of tuning fork? Tine: the length of the tuning fork.
The lower frequency tuning forks have longer tines while higher frequency forks have shorter tines.
Shorter the tuning fork, the faster it vibrates =
higher the pitch it will be.

5. Tuning Forks vs. Water
When a vibrating tuning fork is placed in a cup of water, the energy from the fork is transferred into the water.
If the fork just touches the water, a small amount of water from the top gains kinetic energy and splashes out.
If you dip the fork deeply in the water, the vibrations stop.