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Quantum Physics and the Atom Questions - All Grades

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Grade 11 Quantum Physics and the Atom
Which SI unit is used for Planck's constant?
  1. Joule meter
  2. Newton per second
  3. Newton second
  4. Joule second
Grade 10 Quantum Physics and the Atom
What is meant by the ground state of an atom?
  1. The ground state of an atom is when it has lost all energy.
  2. The ground state of an atom is its highest possible energy state.
  3. The ground state of an atom is when it has not been charged with energy.
  4. The ground state of an atom is its lowest possible energy state.
Grade 11 Quantum Physics and the Atom
The strong nuclear force has several properties that determine its effect on atomic particles including all of the following EXCEPT
  1. it is only attractive, never repulsive.
  2. it acts on both charged and neutral particles.
  3. it acts on protons, neutrons, and electrons to hold the nucleus together.
  4. it is a short-range force.
Grade 10 Quantum Physics and the Atom
What are the differences between the 2s orbital and the 1s orbital of hydrogen? How are they similar? (Select all that apply.)
  1. The 2s orbital is shaped like dumbbells, whereas the 1s orbital is spherical.
  2. The 2s orbital is more oblong than the 1s orbital.
  3. The 2s orbital is larger than the 1s orbital.
  4. The 2s orbital is smaller than the 1s orbital.
  5. The 2s orbital is similar in shape to the 1s orbital.
  6. The 2s orbital is the same size as the 1s orbital.
Grade 9 Quantum Physics and the Atom
How many electrons would it take to equal the mass of a single proton or neutron?
  1. less than one, electrons are bigger than either
  2. 1,836 electrons
  3. 565 electrons
  4. 36 electrons
Grade 11 Quantum Physics and the Atom
A key equation in quantum physics is the                            , which shows the probability of finding a particle at a particular point in space.
  1. Planck's constant
  2. Schrodinger equation
  3. Stefan-Botlzmann's constant
  4. mass-energy equivalence
Grade 10 Quantum Physics and the Atom
How does the energy of a principal energy level depend on the value of n? Does a higher value of n mean a higher or lower energy?
  1. The lower the value of the principal energy level, n, the higher the energy of the principal energy level.
  2. The higher the value of the principal energy level, n, the higher the energy of the principal energy level.
  3. The lower the value of the principal energy level, n, the lower the energy of the principal energy level.
  4. The higher the value of the principal energy level, n, the lower the energy of the principal energy level.
Grade 11 Quantum Physics and the Atom
Quantum physics examines how energy and matter behave at                          .
  1. absolute zero temperature
  2. dynamic equilibrium
  3. a macroscopic level
  4. a microscopic level
Grade 11 Quantum Physics and the Atom
Which of the following equations correctly represents an equation used to find the energy of a photon?
  1. E=hcλ
  2. E=hcλ
  3. E=hc2
  4. E=ch
Grade 12 Quantum Physics and the Atom
What is the correct value of Planck's constant (h), according to Planck's quantum theory?
  1. h=6.625×10-34J
  2. h=6.520×10-30C
  3. h=6.645×10-25J
  4. h=6.21×10-20C
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