Physics Quiz (SSS3) Hi, Test your knowledge with our Physics questions! 1 / 20 Which of the following represents Ohm’s law? I = VR V = IR V = I²R P = IV 2 / 20 Which law states that the induced electromotive force in a coil is proportional to the rate of change of magnetic flux linkage? Lenz’s law Coulomb’s law Ohm’s law Faraday’s law 3 / 20 The half-life of a radioactive isotope is ______. the time taken for the isotope to double in mass the time taken for half of the radioactive nuclei to decay the time taken for the isotope to become stable the time taken for the isotope to decay completely 4 / 20 A transformer that increases voltage is called a ______ transformer. step-up isolating power step-down 5 / 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 6 / 20 The unit of electric field strength is ______. newton per coulomb (N/C) ampere newton volt 7 / 20 The property of a nucleus that determines its stability is its ______. density neutron-to-proton ratio charge size 8 / 20 In the photoelectric effect, increasing the intensity of incident light ______. decreases the number of emitted electrons increases the number of emitted electrons increases the kinetic energy of emitted electrons increases the work function 9 / 20 The distance covered per unit time is called ______. speed acceleration displacement velocity 10 / 20 The force between two charges is inversely proportional to the square of the ______. sum of the charges difference of the charges product of the charges distance between the charges 11 / 20 The energy of a photon is directly proportional to its ______. wavelength frequency amplitude speed 12 / 20 The type of semiconductor doping that adds extra electrons is called ______. p-type intrinsic n-type extrinsic 13 / 20 The electronvolt (eV) is a unit of ______. energy charge force power 14 / 20 The rate of radioactive decay is measured using the quantity called ______. activity all of the above half-life frequency 15 / 20 The binding energy of a nucleus is the energy required to ______. break the nucleus into protons only increase the mass of the nucleus separate the nucleus into its constituent nucleons ionize the nucleus 16 / 20 When a light ray passes from air to glass, it bends towards the ______. normal air reflected ray surface 17 / 20 The unit of capacitance is the ______. ohm henry tesla farad 18 / 20 The magnetic field inside a long solenoid is ______. zero uniform and strong none of the above non-uniform 19 / 20 The velocity of light in a vacuum is approximately ______. 3.0 × 10⁵ m/s 3.0 × 10⁶ m/s 3.0 × 10⁸ m/s 3.0 × 10⁷ m/s 20 / 20 The SI unit of magnetic flux is the ______. gauss weber henry tesla Your score isThe average score is 63% 0% Restart quiz
