11.6 × 13.9 cm Lab Jack

Details

9AA200 - Lab Hardware

1 instance available to reserve

Used in these demonstrations

PASCO cannon cart on an inclined black track with vertical launch barrel, spirit level below the track, lower end nesting into a clear plastic bin lined with green eggshell foam

Cannon Cart on Incline

A spring-loaded cart launches a ball vertically while rolling down an incline. The ball lands back in the cart's funnel, showing that both share the same gravitational acceleration component along …
Apparatus showing glass dish with watch glass and heat pad on left, stacked hard drive magnets on aluminum plate with blue lead brick on lab jack at right
Safety

Dysprosium in Liquid Nitrogen

Demonstrates temperature-dependent magnetic phase transitions. Dysprosium pellets cooled in liquid nitrogen (77 K) become ferromagnetic and stick to a magnet. As they warm, they pass through a helimagnetic phase and …
Video camera with flip-out screen at near end of optical bench, convex lens in dark card mount in middle, desk lamp illuminating target card at far end, wooden meter stick along bench
Safety

Microscope Model

Two convex lenses on an optical bench model a compound microscope, producing a magnified, inverted image captured by a video camera. Students see how objective and eyepiece lenses combine for …
Four photos: storage cabinet for the mirrors, a large parabolic mirror with a candle on a lab jack at its focal point, a parabolic mirror with a Crookes radiometer at its focal point, and an iron ball on a stand
Safety

Parabolic Mirrors

Two parabolic mirrors at opposite ends of the lecture bench focus thermal radiation from a candle (or heated iron ball) onto a Crookes radiometer. Students see that radiant energy -- …
Blue suction cup with bamboo skewer through the handle, sitting on a silver lab jack

Suction Cup

A suction cup lifts a heavy lab jack, demonstrating that atmospheric pressure -- not "suction" -- provides the holding force . A clever release mechanism breaks the seal instantly to …

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