I'd like to say the following have a likely chance of coming up:
P1: Similarities and differences in astronomical objects, possibly with reference to supplied (quantitative) data; Wegener's theory of continental drift or methods of measuring astronomical distance (and in the case of redshift, recession velocity) and specific detail about the fundamental properties of waves (amplitude in terms of energy, frequency in terms of number of cycles per second), possibly discriminating S-waves from P-waves
P2: Linking the inversely proportional relationship of wavelength and frequency on the electromagnetic radiation scale; dangers and risks of electromagnetic radiation and electromagnetic radiation in association with communication
P3: Producing electricity in a power station (specifically, the detail of rotating a magnet within a coil of wire AND how the induced voltage may be increased); a question comparing the energy output of different resources of energy and quantitative analysis of such; possibly a scenario demanding arguments for and against the sustainability of a given source of power, with reference to alternative sources of power.