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