Student Hooke's Law Apparatus with Weights Human Anatomy_Human Anatomy Models Pivoted needle-style electroscope that swings

Pivoted needle-style electroscope that swings on its axis when a charge is applied

Classroom-wide polling clicker system enabling real-time student response during lessons

each fitted with 98 iron-rod plotting compasses in a 14 x 7 matrix that align with field lines whenever a magnet is brought near

Two-foot acrylic rod with one end coiled into a 9-inch loop

Student Hooke's Law Apparatus with Weights Human Anatomy_Human Anatomy Models Pivoted needle-style electroscope that swingsMillimeter graduated 15cm Hooke's Law scale on a 30cm support rod, supplied with weights and set up to minimize parallax error during spring extension measurements.