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Regents Physics modern physics and the Standard Model quiz quiz

12questions. Pick an answer and you'll see why right away.

  1. The energy of a photon is given by

  2. A photon has a frequency of 6.0Γ—10146.0 \times 10^{14} Hz. What is its energy (h=6.63Γ—10βˆ’34h = 6.63 \times 10^{-34} J s)?

  3. The photoelectric effect provides evidence that light behaves as

  4. An atom emits light of only certain specific wavelengths because

  5. An electron drops from a βˆ’1.51-1.51 eV energy level to a βˆ’3.40-3.40 eV level. What is the energy of the emitted photon?

  6. The equation E=mc2E = mc^2 expresses

  7. A mass of 2.0Γ—10βˆ’32.0 \times 10^{-3} kg is converted entirely to energy. How much energy is released (c=3.00Γ—108c = 3.00 \times 10^8 m/s)?

  8. The mass defect of a nucleus is

  9. Nuclear fusion releases energy by

  10. According to the Standard Model, which particle is a lepton?

  11. An up quark has a charge of +23e+\tfrac{2}{3}e and a down quark βˆ’13e-\tfrac{1}{3}e. A neutron is one up and two down quarks. What is its total charge?

  12. Protons and neutrons are best described as