DF L8 - Comparing Energy Sources
DF L8 - Comparing Energy Sources
Music to My Ears [Reading] Links to an external site.
Turn it Up! [Sound Generator] Links to an external site.
Hitting the High Notes [Frequency Interactive] Links to an external site.
Videos
- Volume Demonstrations with Speaker & Lightbulb Links to an external site.
- Frequency Demonstration with a Lightbulb Links to an external site.
- Frequency Demonstration with a Wire Coil and Compass Links to an external site.
- Frequency Demonstration with Amplifier & LED Bulb Links to an external site.