Drilled Aluminum Pendulum Ball, 25mm Subcategory_Power Supplies demonstrating mechanical-to-electrical energy conversion as

demonstrating mechanical-to-electrical energy conversion as the crank lights the bulb

letting students explore mechanical advantage by counting the supporting strands and measuring effort

Used to read the microampere-scale currents found in photodiode and transistor-bias circuits

5 inch specific gravity cylinder with a top hook for density and specific-heat work

offering flexible positioning during force

Drilled Aluminum Pendulum Ball, 25mm Subcategory_Power Supplies demonstrating mechanical-to-electrical energy conversion asAt a full inch diameter, the drilled aluminum ball gives a lightweight contrast to steel and brass balls of the same size in pendulum period and momentum transfer demonstrations.