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