Physics 12 topics – AC circuits, medical imaging, quantum physics

PhysicsQuantum & Nuclear PhysicsAges 17–18

Three Grade 12 physics topics in one simulation, chosen with the topic parameter. Alternating current: a series R, L, C circuit with out-of-phase u and i graphs, a phasor diagram, and the resonance curve of I versus frequency. Physics in medical diagnosis: an X-ray beam passing through soft tissue and bone to form a radiograph following the absorption law I = I₀e^(−μx), or an ultrasound pulse reflecting at a boundary to measure depth. Quantum physics: light of a chosen wavelength shines on a metal, showing whether the photoelectric effect occurs and the maximum initial kinetic energy of the ejected electrons.