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