PHYSICS AQA GCSE QUIZ 0.0 / 5 ? Physicsall of P1GCSEAQA Created by: emilyy_coleCreated on: 15-05-16 15:16 What surfaces are good emitters and absorbers of infra-red radiation? dark, matte surfaces 1 of 18 what is power measured in? watts 2 of 18 what wave is a transverse wave? gamma ray 3 of 18 what is a property of a transverse wave? they can reflect and refract 4 of 18 what is a reflected image? virtual 5 of 18 what voltage is supplied to homes? 230V 6 of 18 What is the national grid? a system of power stations, cables and transformers 7 of 18 what provides evidence for the big bang theory? CMBR 8 of 18 what is the definition of u-value? the measure of how effective a material is as an insulator 9 of 18 What, apart from particles carries kinetic energy through metals? free electrons 10 of 18 what objects lose heat faster? objects with a large surface area 11 of 18 in what state do the particles have the most energy? gas 12 of 18 what is the advantage of fossil fuels? they have a short start up time 13 of 18 what are the states of energy, in order, of a hydro-electric power station? gravitational potential energy, kinetic energy, electrical energy 14 of 18 why is the voltage stepped up for long- distance transportation in cables? because less energy is lost 15 of 18 what is the angle of incidence equal to? the angle of reflection 16 of 18 how do we know if an image is virtual? the image cannot be projected onto a screen 17 of 18 what is diffraction? when waves spread out after they pass through a gap 18 of 18
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