Eu Final Exam Review

35 Questions | Total Attempts: 39

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History Quizzes & Trivia

Questions from Test I-II


Questions and Answers
  • 1. 
    Einstein was runner-up to Ghandi for Time's Man of the 20th Century?
    • A. 

      False

    • B. 

      True

  • 2. 
    The Fifth Postulate of Euclidean Geometry can be proven from the other four postulates?
    • A. 

      No

    • B. 

      Yes

  • 3. 
    What group of scientists helped create the Maxwell Equation?
    • A. 

      Unknown Greek Scientists

    • B. 

      Ampere, Coulomb, Faraday, and Gauss

    • C. 

      No group, just Maxwell

  • 4. 
    What is the main conclusion of Einstein's disription of Brownian Motion?
    • A. 

      Direct proof of the existence of a black hole at the center of all galaxies

    • B. 

      Direct evidence of the existence of atoms

    • C. 

      Gazelles should e placed on the endangered species list.

  • 5. 
    What was Einsteins Miraculous year?
    • A. 

      1905

    • B. 

      1918

    • C. 

      1915

  • 6. 
    Einstein described the photoelectric effect and Brownian moion, and created special realitivity in different years.
    • A. 

      True

    • B. 

      False

  • 7. 
    Which object of spacetime physics led to the conclusion E=mc^2
    • A. 

      The pressure of laser lights acting on mirrors

    • B. 

      Objects moving at the speed of light are so dense they turn into energy

    • C. 

      The union of energy and momentum into a four-dimensional vector

  • 8. 
    How can one represent four-dimensional spacetime as a drawing in three demensions?
    • A. 

      A lattice-work of rulers

    • B. 

      A lattice-work of rulers and one clock

    • C. 

      A lattice-work of rulers, with a clock at each point of the lattice where the rulers connect.

  • 9. 
    After Maxwell completed the equations that are named after him, what was he able to predict?
    • A. 

      Electromagnetic waves move at the speed of light

    • B. 

      Electromagnetic waves move at the speed of sound

  • 10. 
    Einsteins description of the photoelectric effect is able to explain which two phenomena?
    • A. 

      The energy of emitted electrons is independent of the intensity of the incident light, and the number electrons emitted is independent of the frequency of the incident light.

    • B. 

      The energy of emitted electrons is dependent on the intensity of the incident light, and the number of electrons emitted is depend of the frequency of the incident light.

  • 11. 
    When the magnetic flux through a circle of conducting wire changes with time, what is the main responce of the wire
    • A. 

      To develop and electric current

    • B. 

      Balckbody radiation

  • 12. 
    There are magnetic charges that can act as soruces or sinks of magnetic flux?
    • A. 

      No

    • B. 

      Yes

  • 13. 
    Chose the most correct statement.
    • A. 

      Pythagoras Theorem can be used to calculate distances in space-time with no modifications

    • B. 

      Pythagoras Theorem can be used to calculate distances in space-time, bt the time park has a minus sign in front of it.

  • 14. 
    Intertial observers always observe the same acceleration of an object as non-intertail observies
    • A. 

      True

    • B. 

      False

  • 15. 
    Weight W is given by mass m times the accleration due to gravity g; i.e. W= m*g. For the Earth the accleration due to gravity has the value 9.8 m/s^2 but on the Moon it is 1/6 thatt of earths.  Determine the weight of a person on the moon whose weight on earth is 600 Newtons.
    • A. 

      110 N

    • B. 

      83.7 N

  • 16. 
    Are there lines that can be drawn in spacetime that violate cause and effect
    • A. 

      No

    • B. 

      Yes

  • 17. 
    The First Law of Newtonian Mechanics can be proven from the Second Law of Newtonian Mechanics.
    • A. 

      No

    • B. 

      Yes

  • 18. 
    What is the angle tat a light-cone makes with the spacial axes, x,y, or z assuming that the time axis is labeled by c(t) where c is the speed of light
    • A. 

      0

    • B. 

      45

  • 19. 
    The classical model of the atom does not work since it decays because of electromagnetic radiation
    • A. 

      Yes

    • B. 

      No

  • 20. 
    The bohr model of the atom can be used to describe the spectral properties of all atoms of the periodic table.
    • A. 

      True

    • B. 

      False

  • 21. 
    Which of the following describes best electrons and positirons
    • A. 

      There are no differences

    • B. 

      Electrons are matter and positrons are their anti-matter partners

    • C. 

      Positirons are the positive charges in atomic nuclei of the periodic table whereas the electrons are in the orbitals of atoms

  • 22. 
    When Dirac combined special relativity with quatum mechanics he made a startling discovery. Which of the following is Dirac's discover
    • A. 

      Quantum mechanics is invalidated

    • B. 

      Special relativity is invalidated

    • C. 

      The existence of anti-matter

  • 23. 
    What is a photon
    • A. 

      A particle associated with the electromagnetic radiation

    • B. 

      Another form of the electron

  • 24. 
    The standard model does not incorporate all currently known fundamental forces of nature at a quantum level: strong, weak, elctromagnetic, and gravity
    • A. 

      No

    • B. 

      Yes

  • 25. 
    Temperature plays no role in the shape of a blackbody's spectrum
    • A. 

      False

    • B. 

      True