About Quantum mechanics

Following are some of the multiple choice questions on the Quantum mechanics with answers that will help the students in developing their knowledge.

Quantum mechanics MCQ

1. According to classical mechanics, which law(s) apply or applies to the behavior of macroscopic particles?

  • Newton's three laws
  • the differential wave equation
  • Dalton's law of multiple proportions
  • Kepler's Law

2. A determinist view of the world would expect

  • objects to move as they see fit
  • science to be formulaic
  • objects to follow predetermined paths
  • scientist to conduct experiments

3. Which two characteristics are variables in Heisenberg's uncertainty principle?

  • wavelength and distance
  • position and momentum
  • charge and displacement
  • atomic radius and frequency

4. In Mr. Tompkins in Wonderland, strange apparitions are a result of

  • alpha decay
  • large magnitudes of Planck's constant
  • the Pauli exclusion principle
  • radiation

5. Which man wrote Mr. Tompkins in Wonderland?

  • George Orwell
  • Lewis Carroll
  • George Gamow
  • C.S. Lewis

6. Which book's protagonist explores a quantum jungle?

  • A New System of Chemical Philosophy
  • Optiks
  • Mr. Tompkins in Wonderland
  • The Jungle

7. Which physicist proposed the uncertainty principle in 1927?

  • Niels Bohr
  • Albert Einstein
  • Arnold Schrodinger
  • Werner Heisenberg

8. How does the scattering of a photon affect an electron

  • by splitting it in two
  • by charging its charge
  • by making it disappear
  • by changing its position

9. All of the following statements about Schrodinger's cat are true EXCEPT

  • it was conducted in 1935
  • the cat is sealed inside of a box
  • the cat  is both alive and dead
  • there is a 50 percent chance a vial of poison is released inside the box

10. Schrodinger's cat experiment tested

  • the probability of quantum tunneling
  • Bohr's atomic model
  • whether a quantum system could exist in multiple states
  • radioactive decay in Plutonium

11. An object's path can be predicted using Newton's

  • uncertainty principle
  • particle theory
  • conservation laws
  • laws of motion

12. How does a scanning tunneling microscope map a surface?

  • by measuring the size of each individual electron
  • by measuring the voltage created by electron transfer
  • by measuring the size of each atom of the surface
  • by measuring the current due to tunneling electrons

13. The use of a scanning tunneling microscope places a conducting tip

  • 0.5 to 0.8 nm from the surface
  • 0.4 to 0.7 nm from the surface
  • 0.4 to 0.9 nm from the surface
  • 0.3 to 0.5 nm from the surface

14. The probability density is the

  • square root of the wave function
  • absolute value of the wave function
  • inverse of the wave function
  • absolute square of the wave function

15. Solutions to Schrodinger's equation are labeled with

  • psi
  • phi
  • mu
  • pi

16. Schrodinger's equation described the

  • procedure for splitting an atom
  • complement of the wave function
  • behavior of "matter" waves
  • motion of light

17. Generally, the mathematics of modern quantum mechanics is

  • perfunctory
  • unimportant
  • simplified
  • complex

18. Before 1925, quantum theory

  • faced little challenge to its credibility
  • lacked organization
  • had wide applications
  • was widely accepted

19. What is the current interpretation of physical theories?

  • Quantum field theory
  • nihilistic theory
  • We haven't current interpretation.
  • String theory

20. In quantum mechanics is energy conserved?

  • Always
  • never
  • yes and not, the not is because it's only momentarily
  • All of above

21. What is the uncertainty principle?

  • We can't know 2 parameters at the same time, only both with a margin of uncertainty.
  • We can only know 1 parameter of 2, having the other with uncertainty
  • We can't have known of any parameter
  • None of these

22. What is the light?

  • A wave
  • A particle
  • Both
  • Both A & B

23. Which is the equation of De Broglie's hypothesis correct? (Wavelenght is equals to...)

  • h/(mv) = planck constant/(mass·speed)
  • h/v = planck constant/speed
  • v/m = speed/mass
  • All of above

24. Which is the atomic model now?

  • Shrodingüer's model
  • Quantum's model
  • Einstein's model
  • Both A & B

25. What was the atomic model that had the problem it triggered in quantum atomic model?

  • Dalton's model
  • Heissenberg's model
  • Thompson's model
  • Rutherford's model

26. Who is Max Planck?

  • A chemist
  • A physicist and the Quantum Mechanics pioneer
  • Communism's creator
  • None of these

27. Which is the number of the most equations of Quantum Mechanics?

  • planck's constant (h)
  • Speed of electron (z)
  • Wavelegth of water molecule (A)
  • Size of universe (ñ)

28. What experiment changed classical mechanics of physics by of a theoretical error?

  • The black hole
  • Newton's prime
  • The ultraviolet catastrophe
  • the infrared effect

29. Why are scientist pretty sure dark matter and dark energy exist?

  • We are made of dark matter and dark energy
  • In a galaxy the stars the orbit on the outer edge of our galaxy should orbit slower than the stars closer to the center, but star on the outer edges orbit at about the same speed as the stars near the center.
  • Because Albert Einstein said so
  • The equation e=mc^2 proves they exist

30. What can Zur Quantenmechanik be translated to?

  • "To Rome We Go"
  • Greece, Rethymno
  • "Sweet Home Alabama"
  • "To Quantum Mechanics"

31. In what field of science is quantum mechanics important

  • Physics
  • Biology
  • The liberal arts
  • Geology

32. On what scale is quantum mechanics used?

  • Planck scale
  • Macro scale
  • Body weight scale
  • Micro scale

33. What is the Planck length of a meter

  • 65 billion times the size of a meter
  • 1.6*10^-35 of a meter
  • 99*10^-57 of a meter
  • Max Planck never had a length named after him

34. Who discovered the electron?

  • J.R.R. Tolkien
  • J.J. Thompson
  • J.K. Rowling
  • No one, the electron does not exist

35. How do neutron stars form

  • A star's core collapses
  • The moon smashes in to Earth
  • A strange quark is able to turn everything in to strange matter
  • Time travel

36. What makes the strange quark so strange?

  • It is nearly perfect
  • Every other quark that touches the strange quark is turned into a strange quark
  • All of the above

37. Why can't we study dark matter and dark energy?

  • Matter blocks them out
  • They move way too fast
  • Because of the expansion of the universe
  • Light does not reflect off of dark matter and dark energy

38. How much of the universe's energy distribution is dark matter and dark energy?

  • Dark matter is 26% and dark energy is 74% of the universe's total energy distribution
  • Dark energy is 69% and dark matter is 26% of the universe's total energy distribution
  • Both dark energy and dark matter are 5% of the universe's total energy distribution
  • Dark matter and dark energy don't exist

39. Why do galaxies move away from one another?

  • The galaxies are expanding
  • They are not moving away from one another
  • The expansion of the universe
  • Dark matter and dark energy

40. Who had the first idea of the existence of atoms?

  • The Romans
  • The Greeks
  • The Avengers
  • The Pythagoreans

41. What are the names of the six quarks?

  • Texas, California, Hawaii, Alabama, Colorado, and Nevada
  • e,m,c^2,a^2,b^2, 42, and 21
  • Up, down, charm, top, bottom, and strange
  • Doctor Strange

42. What are protons, neutrons, and electrons made of?

  • Duck quacks
  • Strange quarks
  • Up and down quarks
  • Leptons

43. How many types of Quarks are there?

  • Six
  • 600
  • 5+6
  • 6-6

44. What's the smallest thing we know of?

  • The sun
  • A marble
  • A Planck Length
  • A light year

45. Where did most of the Founding Fathers of Quantum Mechanics come from?

  • New York
  • The United States
  • Asia
  • Germany

46. Why are Werner Heisenberg, Max Born, and Wolfgang Pauli some of the Founding Fathers of Quantum Mechanics?

  • They published the paper Zur Quantenmechanik
  • They published War and Peace
  • They published Gone with the Wind

47. Who are the Founding Fathers of Quantum Mechanics?

  • Schrodinger's Cat
  • The leader of Germany in the 1920's
  • Werner Heisenberg, Max Born,Wolfgang Pauli, PascualJordan, and Erwin Schrodinger
  • None of these

48. What is Quantum Mechanics?

  • Making/finding a description of how small particles look & act
  • Fixing small cars
  • Understanding objects on the macro scale
  • Understanding the quantum realm in the MCU

49. If you hit a table with your hand, what force stops your hand from going through?

  • Gravity
  • Electromagnetism
  • Air resistance
  • All of above

50. What is the smallest particle the nucleus consists of?

  • Electron
  • Proton
  • Quark
  • All of above

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