9V I-Type Battery Snap Connector with Insulated Leads, 6" Physics_Mechanics 5 inches) with one fork

5 inches) with one fork carrying an adjustable tuning mass

this 10-unit kit pairs two each of 10/20/50/100/200-ohm enclosed resistors at 3

Six-piece laboratory-glass barware set bundles beaker shot glasses

and field-mapping work

this Melde's vibrating string apparatus pairs an oscillator-driven string with a mass tray that adjusts tension to determine wavelength

9V I-Type Battery Snap Connector with Insulated Leads, 6" Physics_Mechanics 5 inches) with one forkInsulated I type 9V battery snap with 6 inch red and black leads, sized for short run student wiring of buzzers, LEDs, and small motor circuits without bare terminal hazards.