Chain Drive with Tensioner Mechanical Demonstration Model Meters_Electrical showing the deflection of a

showing the deflection of a current-carrying wire through a fixed magnetic field via 4mm safety sockets

Two-ohm wire-wound fixed resistor in an ABS module with 4mm sockets

providing dense uniform spheres for ramp-and-collision experiments where a heavier projectile is needed than the plastic marbles can provide

visible crankshaft

5mm copper wire on a 5 x 4

Chain Drive with Tensioner Mechanical Demonstration Model Meters_Electrical showing the deflection of aTensioner pulley keeps chain engagement consistent on this hand cranked chain drive, viewable between clear plates so students watch sprocket teeth grip and transfer torque under load.