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