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Coulomb's Law (College)

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Coulomb's Law

1. 
Which equation correctly describes the electric force between two charged objects?
  1. [math]F=k_e{q_1 q_2}/{r^2}[/math]
  2. [math]F=k_e{q_1 q_2}/{r}[/math]
  3. [math]F=k_eq_1 q_2r^2[/math]
  4. None of the above
2. 
Which of the following represents the value of k in Coulomb's Law?
  1. [math]k=1/4epsi_0[/math]
  2. [math]k=1/2epsi_0[/math]
  3. [math]k=1/4πepsi_0[/math]
  4. [math]k=1/2πepsi_0[/math]
3. 
Which of the following represents the relationship between the charges and the force between the charged particles?
  1. They are inversely proportional to one another
  2. They are directly proportional to one another
  3. One of the charges is directly proportional to the force
  4. None of the above
4. 
Which of the following represents how the charges affect the forces?
  1. Charges of the same sign lead to attractive forces
  2. Charges with opposite signs lead to repulsive forces
  3. Charges with the same sign lead to repulsive forces
  4. Both (a) and (b)
5. 
Which of the following correctly represents the relationship between distance and first ionization energy?
  1. As distance increases, so too does the ionization energy
  2. As distance increases, the ionization energy decreases
  3. As distance decreases, the ionization energy remains the same
  4. As distance increases, the ionization energy remains the same
6. 
Which of the following is true about ionic compounds, according to Coulomb's Law?
  1. Ionic compounds formed by ions with smaller charges form stronger bonds
  2. Ionic compounds formed with longer bond lengths have stronger bonds
  3. Ionic compounds formed by ions with larger charges and longer bond lengths leads to stronger bonds
  4. Ionic compounds formed by ions with larger charges form stronger bonds
7. 
Assuming that two species have the same electron arrangement, which of the following will lead to a higher ionization energy for an electron?
  1. A higher nuclear charge
  2. A lower nuclear charge
  3. A lower nuclear charge and greater electron-electron repulsion
  4. None of the above
8. 
Which of the following represents stability in bonds on a plot of potential energy vs. distance?
  1. The highest amount of energy
  2. The greatest amount of repulsion
  3. The lowest amount of energy
  4. Both (b) and (c)
9. 
Compare the strengths of the following bonds to one another: Li-Cl and Mg-S. Briefly explain your answer.










10. 
Particles with charges of +0.67 C and of -0.89 C are 0.25 m apart. Determine the value of F, using Coulomb's Law. Show your work.




















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