Cool Labs

Waves on a Helical Spring
Waves on a Helical Spring

Students investigate properties of mechanical waves using a helical spring: wavelength, speed, reflection, standing waves, interference. Neither amplitude nor frequency affects wave speed. As wave frequency goes up, wavelength goes down, and vice versa. Wave pulses can interfere constructively (adding...

Slinky waves
Slinky waves

Students investigate properties of mechanical waves using a "slinky" spring: wavelength, speed, reflection, standing waves, interference. Good for grade levels 5 through 8. Download Teacher Notes and Student Worksheets Required Equipment Acknowledgements: Thank you to Dwight "Buzz" Putnam for his...