THE LIBRARY
Every experiment. Read it, or run it.
Full protocols with apparatus lists, safety notes, and the results you should expect — plus a live simulator on the same page, so reading and doing are one trip, not two.
7 of 19 experiments
Ohm's law: V–I characteristics of a resistor
Wire the circuit, sweep the current, and read resistance off your own V–I graph.
Simple pendulum: measuring g
Time the swing at five lengths and extract g from a T²–L plot.
Moments: finding the weight of an unknown mass
Balance a pivoted ruler against two known loads and find an unknown weight two independent ways.
Resistance of a wire: R depends on length (slide-wire method)
Slide a contact along a metre of wire and show resistance is directly proportional to length.
Refraction through a rectangular glass block
Trace a ray through a glass block with pins, and see why spacing them out sharpens your angle.
Spring oscillations: series vs parallel stiffness
Time the same springs in series and in parallel, and plot √T2 against √T1.
Deformation of paper cylinders: testing w = k(y − p)
Squash a rolled paper cylinder under a spring-loaded mass and test w = k(y − p).