US$ 107.00
Studies oblique collisions between steel balls on a flat surface
varying length isolating density as the single variable across materials
demonstrating mechanical-to-electrical energy conversion as the crank lights the bulb
sized for acceleration
Plug-in 120V AC blower sized to feed a linear air track
Bell in Vacuum Jar, Acrylic, 4-6V DC Pack Size_100 Studies oblique collisions between steelAcrylic bell in vacuum jar with an internal 4 6V DC electric bell that fades and falls silent as the enclosed air is removed, visualizing sound transmission dependence on a medium.
US$ 107.00
US$ 18.95
US$ 107.50
US$ 37.99