Modern Physics Review Sheet 1. Which 2 experiments proved light is a particle?
________________ 3. Which color of light has the
greatest energy? _____________ Smallest energy? _____________ Why? _____________ 5. If the frequency of light is
decreased how does that affect its energy?
______ Show the equation that relates these 2 variables
___________ 5a) What is the relationship between the
energy of a photon and its wavelength? 6. What is the relationship between the
wavelength of a particle and its momentum? 7. Why is it difficult to observe the
wave behavior of a moving basketball? 8. What did Rutherford's experiment
tell us about the atom? ____________________ ______________________ _________________ 9. What does an electron in an atom have
to do to lose energy? Go up or down an energy level. 9a) The lowest energy an
electron can be in is called the ____________ state. energy level? ___________________________ How much energy does it take to ionize
an electron in the B level in mercury? 11. How much energy must an electron in
hydrogen have to absorb to go from the 3rd to the 4th
energy level? 12a) How will the deflection angle change as an
alpha particle comes closer to a nuclei? 13. Draw the path of an alpha particle that
comes near the nucleus. Now draw the path of an alpha particle that
comes closer to the nucleus. 14. What is an “electron cloud” in the new model
of the atoms? 17. How much energy can you get when 2 kg of
mass is converted to energy? 19. Name three quarks from your reference table. 20. Give two examples of baryons. 21. How many different amounts of energy can an atom
with 3 energy levels emit? |