Physics Quiz (SSS3) Hi, Test your knowledge with our Physics questions! 1 / 20 Which of the following represents Ohm’s law? I = VR P = IV V = IR V = I²R 2 / 20 Which law states that the induced electromotive force in a coil is proportional to the rate of change of magnetic flux linkage? Faraday’s law Lenz’s law Ohm’s law Coulomb’s law 3 / 20 The force between two charges is inversely proportional to the square of the ______. distance between the charges sum of the charges difference of the charges product of the charges 4 / 20 A transformer that increases voltage is called a ______ transformer. step-down power step-up isolating 5 / 20 The property of a nucleus that determines its stability is its ______. neutron-to-proton ratio density size charge 6 / 20 The electronvolt (eV) is a unit of ______. charge power force energy 7 / 20 The energy of a photon is directly proportional to its ______. amplitude speed frequency wavelength 8 / 20 The distance covered per unit time is called ______. acceleration speed velocity displacement 9 / 20 In the photoelectric effect, increasing the intensity of incident light ______. increases the number of emitted electrons decreases the number of emitted electrons increases the work function increases the kinetic energy of emitted electrons 10 / 20 The rate of radioactive decay is measured using the quantity called ______. activity frequency half-life all of the above 11 / 20 The binding energy of a nucleus is the energy required to ______. increase the mass of the nucleus separate the nucleus into its constituent nucleons ionize the nucleus break the nucleus into protons only 12 / 20 The type of semiconductor doping that adds extra electrons is called ______. p-type intrinsic extrinsic n-type 13 / 20 The unit of electric field strength is ______. ampere newton per coulomb (N/C) newton volt 14 / 20 The SI unit of magnetic flux is the ______. henry gauss weber tesla 15 / 20 When a light ray passes from air to glass, it bends towards the ______. surface air normal reflected ray 16 / 20 The half-life of a radioactive isotope is ______. the time taken for the isotope to double in mass the time taken for the isotope to decay completely the time taken for the isotope to become stable the time taken for half of the radioactive nuclei to decay 17 / 20 The phenomenon in which electrons are emitted from a metal surface when light of certain frequency shines on it is called ______. thermionic emission photoelectric effect phosphorescence fluorescence 18 / 20 The magnetic field inside a long solenoid is ______. uniform and strong non-uniform none of the above zero 19 / 20 The unit of capacitance is the ______. henry farad tesla ohm 20 / 20 The velocity of light in a vacuum is approximately ______. 3.0 × 10⁷ m/s 3.0 × 10⁶ m/s 3.0 × 10⁵ m/s 3.0 × 10⁸ m/s Your score isThe average score is 0% 0% Restart quiz
