Biology Forums - Study Force

__________ is the prediction of special relativity that moving clocks run slow.
 Fill in the blank(s) with correct word

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[Ques. 2] Particles possessing half-integral spins are called _________ and particles with integral spins are called ________.
 a. quarks b. fermions
  c. bosons d. antiquarks

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[Ques. 3] t and b quarks are named
 a. truth and beauty.
  b. up and down.
  c. top and bottom.
  d. Itchy and Scratchy.
  e. none of the above.

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[Ques. 4] Quarks have electric charges of magnitude
 a. e.
  b. 1/3 e.
  c. 2/3 e.
  d. 0.
  e. none of the above

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[Ques. 5] The electron
 a. is an absolutely stable particle. b. decays via the weak interaction.
  c. has zero mass. d. is a lepton.

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[Ques. 6] In interactions taking place by the weak force, which of the following quantities are conserved?
 a. electric charge
  b. baryon number
  c. mass-energy
  d. strangeness
  e. linear momentum
  f. angular momentum (spin)

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[Ques. 7] In interactions taking place by the strong force, which of the following quantities are conserved?
 a. electric charge
  b. baryon number
  c. mass-energy
  d. strangeness
  e. linear momentum
  f. angular momentum (spin)

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[Ques. 8] A particle that interacts via the strong force is a(n)
 a. lepton.
  b. baryon.
  c. meson.
  d. intermediate (or gauge) boson.
  e. hadron.

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[Ques. 9] Quarks come in what flavors?
 a. up, down and strange b. charm, top and bottom
  c. red, green and blue d. all of the above

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[Ques. 10] The positron
 a. is an antielectron.
  b. was the first antimatter particle discovered.
  c. is the same as a proton.
  d. all of the above

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